Imap Chilkat2 Perl Reference Documentation

Chilkat2::Imap

Current Version: 11.7.0

Markdown version of this page for AI tools (v 11.7.0) · all AI docs

Chilkat.Imap

Access, search, download, organize, and monitor email on IMAP servers.

Chilkat.Imap is a full-featured IMAP client class for applications that need reliable server-side email access and mailbox management. It supports secure connections, authentication, mailbox selection, message searching, downloading email and attachments, flag management, moving and copying messages, appending MIME, IDLE-based change monitoring, and detailed diagnostics for troubleshooting server behavior.

Secure IMAP connections

Connect with SSL/TLS, STARTTLS, OAuth2, password authentication, proxy settings, timeouts, and connection diagnostics.

Mailbox selection and listing

List mailboxes, select folders, inspect mailbox state, and work with server-side folders such as Inbox, Sent, Archive, or custom folders.

Search and fetch messages

Search by IMAP criteria, work with UIDs or sequence numbers, download full messages, headers, MIME, body text, or selected message parts.

Message management

Set and clear flags, mark messages read or unread, copy or move messages, delete messages, expunge mailboxes, and append MIME to folders.

Attachments and MIME

Retrieve email as Chilkat Email objects, process MIME content, and save or inspect attachments as needed.

IDLE and diagnostics

Monitor mailbox changes with IMAP IDLE and use detailed logging, response text, and LastErrorText to troubleshoot servers.

Common pattern: Connect securely, authenticate, select a mailbox, search or fetch messages using UIDs when possible, perform message or folder operations, then disconnect cleanly. Use detailed diagnostics when working with provider- specific IMAP behavior.

Object Creation

use Chilkat2;

my $imap = Chilkat2::Imap->new;
# or set properties (and RaiseError) at creation:
# my $imap = Chilkat2::Imap->new(VerboseLogging => 1, RaiseError => 1);
my $imap = Chilkat2::Imap->new(Property => $value, ...);

Creates the object. The optional pairs set writable properties (and RaiseError) in order, as if set one by one; an unknown or read-only name croaks. use Chilkat2; loads every class; the Chilkat2/Imap.pm file holds only this class's documentation (perldoc Chilkat2::Imap).

Perl frees the object when its last reference goes (undef $imap, or the variable going out of scope); there is nothing to close. Objects returned by methods are independent and freed the same way. The class may be subclassed (use parent -norequire, 'Chilkat2::Imap';): an object is a blessed hash reference whose hash is free for the subclass's own fields.

my $boolVal = $imap->RaiseError;
$imap->RaiseError($boolVal);

When false (the default), a method that fails returns false (or undef), and the reason is in LastErrorText. When true, it dies with a Chilkat2::Error instead, as DBI does with its RaiseError. Objects returned by a method inherit the value of the object that returned them.

Errors

A Chilkat2::Error stringifies to the failed call's full LastErrorText, and has the methods text, class ('Chilkat2::Imap'), method (the method name) and object. Methods that look something up and find nothing return undef without dying (each such method says so), methods that answer a question (HasMember, IsUnlocked, ...) return a plain boolean, and property reads and writes never fail for Chilkat reasons.

Misuse always croaks, with your file and line, whatever RaiseError is: a wrong number of arguments, a reference or undef where a string or number is expected, an object of the wrong class, an out-of-range integer, a string containing a NUL character, a wide character in a byte string, or a write to a read-only property.

Strings are Perl character strings in both directions (length, regexes and :encoding layers see characters); binary data (BinData) is a byte string. Unlocking: call Chilkat2::Global->new->UnlockBundle('...') once at startup.

Properties

AbortCurrent
# $boolVal is a boolean
my $boolVal = $imap->AbortCurrent;
$imap->AbortCurrent($boolVal);
Introduced in version 9.5.0.58

Controls cancellation of the method currently running on this Imap object.

  • Set this property to 1 to request that a long-running network operation abort.
  • Short methods that do not perform lengthy processing or network communication are generally unaffected.
  • Both synchronous and asynchronous calls can be aborted. A synchronous call may be canceled by setting this property from another thread.

The property is automatically reset to 0 when the abort is processed. If no method is running, it is reset when the next method begins.

Canceling an operation can leave the connection in an uncertain state. Close the connection, reconnect, authenticate again, and reselect the mailbox before continuing. Output objects may contain partial results, and a server-side operation may already have been partially applied before cancellation.

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AppendSeen
# $boolVal is a boolean
my $boolVal = $imap->AppendSeen;
$imap->AppendSeen($boolVal);

Controls the initial \Seen flag for these methods:

  • 1 (the default): the appended message is marked as seen.
  • 0: the appended message is initially unseen.

The flag-specific append methods use their explicit arguments and do not use this property.

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AppendUid
# $intVal is an integer (read-only)
my $intVal = $imap->AppendUid;

Contains the UID assigned by the server to the message most recently appended successfully.

The default is 0. After any successful append, this property is set to the UID reported by the server, or to 0 if the server succeeds but does not report an appended UID. A failed append leaves the previous value unchanged.

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AuthMethod
# $strVal is a string
my $strVal = $imap->AuthMethod;
$imap->AuthMethod($strVal);

Selects the IMAP authentication mechanism. Matching is case-insensitive, but spelling matters.

ValuePurpose
LOGINUsername and password authentication.
PLAINSASL PLAIN authentication. AuthzId may also be used.
CRAM-MD5Challenge-response authentication when supported by the server.
NTLMWindows Integrated Authentication.
XOAUTH2OAuth 2.0 access-token authentication.

The default is LOGIN, and an empty or unrecognized value also uses the LOGIN method. If the selected mechanism fails or is not supported by the server, Chilkat does not fall back to another authentication method.

If NTLM authentication fails because of an NTLM-version compatibility issue, set Global.DefaultNtlmVersion to 1 and retry.

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AuthzId
# $strVal is a string
my $strVal = $imap->AuthzId;
$imap->AuthzId($strVal);

Specifies the optional authorization identity used with the PLAIN authentication mechanism.

Leave this property empty unless the IMAP server requires an authorization identity that differs from the login identity supplied to Login.

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AutoDownloadAttachments
# $boolVal is a boolean
my $boolVal = $imap->AutoDownloadAttachments;
$imap->AutoDownloadAttachments($boolVal);

Controls whether methods that download a complete email also download ordinary attachment bodies. The default is 1.

  • 1: complete-email fetches include attachment bodies.
  • 0: complete-email fetches omit ordinary attachment bodies, whether the result is returned as an Email object or as MIME.

Header-only methods never download attachment bodies. They add ckx-imap-* metadata describing the attachments, which can be read with GetMailNumAttach, GetMailAttachFilename, and GetMailAttachSize. In this state, the Email object's ordinary attachment count can still be 0.

Related MIME parts used by an HTML body are not treated as ordinary attachments. Signed or encrypted messages are always downloaded in full because their complete MIME is required for verification or decryption.

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AutoFix
# $boolVal is a boolean
my $boolVal = $imap->AutoFix;
$imap->AutoFix($boolVal);

When 1 (the default), changes the public Ssl and StartTls property values when Connect is called for a standard IMAP port:

  • Port 993: sets Ssl to 1 and StartTls to 0 for implicit TLS.
  • Port 143: sets Ssl to 0. The existing StartTls value determines whether the connection is upgraded explicitly.

For a nonstandard port, this property makes no changes. Set it to 0 when the application must preserve an unusual port and TLS combination exactly as configured.

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ClientIpAddress
# $strVal is a string
my $strVal = $imap->ClientIpAddress;
$imap->ClientIpAddress($strVal);

Specifies the local IP address to bind when the computer has multiple network interfaces or addresses.

Leave this property empty for the usual case. The operating system will select the default local interface. When set, use a numeric IP address such as 165.164.55.124, not a hostname.

More Information and Examples
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ConnectedToHost
# $strVal is a string (read-only)
my $strVal = $imap->ConnectedToHost;

Contains the hostname or IP address of the IMAP server to which the object is currently connected.

Returns an empty string when no connection is active.

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ConnectTimeout
# $intVal is an integer
my $intVal = $imap->ConnectTimeout;
$imap->ConnectTimeout($intVal);

The maximum number of seconds to wait while establishing the TCP connection to the IMAP server.

The default is 30 seconds. This timeout applies to connection establishment, not to later reads from the server.

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DebugLogFilePath
# $strVal is a string
my $strVal = $imap->DebugLogFilePath;
$imap->DebugLogFilePath($strVal);

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
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Domain
# $strVal is a string
my $strVal = $imap->Domain;
$imap->Domain($strVal);

Specifies the Windows domain used for NTLM authentication.

This property is optional and may be left empty when the login name already identifies the domain or when NTLM is not used.

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EnableSecrets
# $boolVal is a boolean
my $boolVal = $imap->EnableSecrets;
$imap->EnableSecrets($boolVal);
Introduced in version 11.5.0

Enables automatic resolution of credential values from secure operating-system storage. The default is 0.

When 1, supported password arguments and properties may contain a secret specification beginning with !! instead of a literal secret. Chilkat resolves the value from Windows Credential Manager or Apple Keychain.

!![appName|]service[|domain]|username

This applies to HttpProxyPassword, SocksPassword, the password supplied to Login, and the password supplied to SshAuthenticatePw.

More Information and Examples
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HeartbeatMs
# $intVal is an integer
my $intVal = $imap->HeartbeatMs;
$imap->HeartbeatMs($intVal);

Sets the interval, in milliseconds, between AbortCheck event callbacks during operations that support cancellation.

The default is 0, which disables periodic AbortCheck callbacks.

More Information and Examples
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HighestModSeq
# $strVal is a string (read-only)
my $strVal = $imap->HighestModSeq;
Introduced in version 9.5.0.87

Contains the HIGHESTMODSEQ value of the currently selected mailbox as a decimal string.

The value is 0 when no mailbox is selected or the server does not provide this information. A string is used because the value may exceed the integer range of some programming languages.

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HttpProxyAuthMethod
# $strVal is a string
my $strVal = $imap->HttpProxyAuthMethod;
$imap->HttpProxyAuthMethod($strVal);

Specifies the authentication mechanism used by an HTTP proxy.

Valid values are Basic and NTLM. This property is used only when HttpProxyHostname identifies an HTTP proxy that requires authentication.

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HttpProxyDomain
# $strVal is a string
my $strVal = $imap->HttpProxyDomain;
$imap->HttpProxyDomain($strVal);

Specifies the optional Windows domain for HTTP-proxy NTLM authentication.

It is ignored when the proxy does not use NTLM authentication.

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HttpProxyHostname
# $strVal is a string
my $strVal = $imap->HttpProxyHostname;
$imap->HttpProxyHostname($strVal);

Specifies the hostname or numeric IPv4 address of an HTTP proxy through which the IMAP connection is established.

Leave this property empty to connect directly or to use another configured transport such as SOCKS or SSH tunneling.

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HttpProxyPassword
# $strVal is a string
my $strVal = $imap->HttpProxyPassword;
$imap->HttpProxyPassword($strVal);

Specifies the password used to authenticate with the configured HTTP proxy.

It is used only when the proxy requires authentication.

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HttpProxyPort
# $intVal is an integer
my $intVal = $imap->HttpProxyPort;
$imap->HttpProxyPort($intVal);

Specifies the TCP port of the configured HTTP proxy.

Common values include 8080 and 3128, but the correct value is determined by the proxy server configuration.

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HttpProxyUsername
# $strVal is a string
my $strVal = $imap->HttpProxyUsername;
$imap->HttpProxyUsername($strVal);

Specifies the username used to authenticate with the configured HTTP proxy.

It is used only when the proxy requires authentication.

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KeepSessionLog
# $boolVal is a boolean
my $boolVal = $imap->KeepSessionLog;
$imap->KeepSessionLog($boolVal);

Enables or disables the in-memory IMAP protocol log. The default is 0.

When enabled, SessionLog contains the raw commands sent to the server and the raw responses received. Use ClearSessionLog to reset it.

More Information and Examples
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LastAppendedMime
# $strVal is a string (read-only)
my $strVal = $imap->LastAppendedMime;

Contains the MIME source sent by the most recent successful call to one of the following methods:

A failed append leaves the previous value unchanged. Therefore, read this property only after confirming that the append method succeeded.

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LastCommand
# $strVal is a string (read-only)
my $strVal = $imap->LastCommand;

Contains the most recent raw IMAP command sent to the server.

This property is primarily intended for diagnostics when an IMAP operation fails or produces an unexpected response.

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LastErrorHtml
# $strVal is a string (read-only)
my $strVal = $imap->LastErrorHtml;

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
# $strVal is a string (read-only)
my $strVal = $imap->LastErrorText;

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
# $strVal is a string (read-only)
my $strVal = $imap->LastErrorXml;

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastIntermediateResponse
# $strVal is a string (read-only)
my $strVal = $imap->LastIntermediateResponse;

Contains the most recent intermediate response received from the IMAP server while a command was in progress.

Use it for protocol-level diagnostics when a command involves continuations or multiple response stages.

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LastMethodSuccess
# $boolVal is a boolean
my $boolVal = $imap->LastMethodSuccess;
$imap->LastMethodSuccess($boolVal);

Indicates the success or failure of the most recent method call: 1 means success, 0 means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.

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LastResponse
# $strVal is a string (read-only)
my $strVal = $imap->LastResponse;

Contains the raw response most recently received from the IMAP server.

This property is cleared when Chilkat sends a new command. If a method fails during local argument validation or before a command is sent, the previous response can remain here. Also, a method can return failure even when the last tagged server response is OK, such as when a syntactically successful FETCH returns no matching message. Use the method return value or LastMethodSuccess as the authoritative success indicator.

More Information and Examples
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LastResponseCode
# $strVal is a string (read-only)
my $strVal = $imap->LastResponseCode;
Introduced in version 9.5.0.44

Contains the optional IMAP response code from the most recent server response, such as NONEXISTENT or AUTHENTICATIONFAILED. Response-code strings vary by server.

If a method fails before sending an IMAP command, this property can still contain the response code from an earlier command. Use the method return value or LastMethodSuccess to determine whether the current operation succeeded.

More Information and Examples
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LoggedInUser
# $strVal is a string (read-only)
my $strVal = $imap->LoggedInUser;

Contains the username of the authenticated IMAP session.

Returns an empty string when the object is not logged in.

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NumMessages
# $intVal is an integer (read-only)
my $intVal = $imap->NumMessages;

Contains the number of messages reported when the current mailbox was selected.

The value is updated by SelectMailbox and ExamineMailbox. Unsolicited EXISTS notifications returned by IdleCheck do not automatically update this property; use the notification value or reselect/query the mailbox when a refreshed count is needed.

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PeekMode
# $boolVal is a boolean
my $boolVal = $imap->PeekMode;
$imap->PeekMode($boolVal);

Controls whether fetching full message content marks the message as seen.

  • 0 (the default): fetching a full message or its raw MIME may set the \Seen flag.
  • 1: full message data and raw MIME are fetched without setting \Seen, using IMAP peek semantics.

Fetching headers only does not set \Seen, regardless of this property.

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PercentDoneScale
# $intVal is an integer
my $intVal = $imap->PercentDoneScale;
$imap->PercentDoneScale($intVal);
Introduced in version 9.5.0.49

Sets the scale used by PercentDone event callbacks. The default is 100.

For example, a scale of 1000 gives tenths-of-a-percent precision, so a callback value of 453 represents 45.3% complete. Values are limited to the range 10 through 100000.

This property applies only to languages and environments that support event callbacks and only to operations for which progress can be measured.

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Port
# $intVal is an integer
my $intVal = $imap->Port;
$imap->Port($intVal);

Specifies the IMAP server port. The default is 143.

  • 993 is the standard port for implicit TLS and is normally used with Ssl set to 1.
  • 143 is the standard port for ordinary IMAP and for explicit TLS requested with StartTls.

When AutoFix is enabled, standard port values are used to adjust the effective TLS configuration when connecting.

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PreferIpv6
# $boolVal is a boolean
my $boolVal = $imap->PreferIpv6;
$imap->PreferIpv6($boolVal);

Controls address-family preference when a hostname resolves to both IPv4 and IPv6 addresses.

  • 0 (the default): prefer IPv4.
  • 1: prefer IPv6.

The other address family may still be used when the preferred one is unavailable.

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ReadTimeout
# $intVal is an integer
my $intVal = $imap->ReadTimeout;
$imap->ReadTimeout($intVal);

The maximum number of seconds that an incoming IMAP response may stall with no additional bytes received.

The default is 60 seconds. This is an inactivity timeout, not a limit on the total time allowed for a large response.

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RequireSslCertVerify
# $boolVal is a boolean
my $boolVal = $imap->RequireSslCertVerify;
$imap->RequireSslCertVerify($boolVal);

Controls verification of the IMAP server's TLS certificate chain.

  • 0 (the default): a connection is not rejected solely because normal certificate-chain verification fails.
  • 1: the connection fails when the certificate is expired, is not yet valid, its signature is invalid, or its chain cannot be verified to a trusted root.

Certificate-chain verification is separate from hostname matching and public-key pinning. Hostname matching, when required, is enforced independently even when this property is 0. TlsPinSet supplements rather than replaces normal certificate verification.

The hostname used for the TLS connection is also used for Server Name Indication (SNI) and certificate hostname comparison.

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SearchCharset
# $strVal is a string
my $strVal = $imap->SearchCharset;
$imap->SearchCharset($strVal);

Specifies the IMAP CHARSET used by Search, QueryMbx, and QueryThread when search criteria contain non-ASCII characters. The default is UTF-8.

If the criteria contain only 7-bit ASCII characters, no CHARSET is needed and this property has no effect. The value AUTO enables the legacy behavior of selecting a charset by examining the criteria text.

Most applications should leave this property unchanged unless a particular server rejects non-English search text.

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SelectedMailbox
# $strVal is a string (read-only)
my $strVal = $imap->SelectedMailbox;

Contains the name of the currently selected or examined mailbox.

Returns an empty string when no mailbox is selected.

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SendBufferSize
# $intVal is an integer
my $intVal = $imap->SendBufferSize;
$imap->SendBufferSize($intVal);

Specifies the application-level buffer size used when sending data through the underlying TCP connection.

The default is 32767 bytes. Most applications should leave this setting unchanged.

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SeparatorChar
# $strVal is a string
my $strVal = $imap->SeparatorChar;
$imap->SeparatorChar($strVal);

Contains the mailbox-hierarchy delimiter reported by the IMAP server, typically / or ..

MbxList and the legacy mailbox-listing methods update this property from the server's LIST response. The value is a string containing one character.

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SessionLog
# $strVal is a string (read-only)
my $strVal = $imap->SessionLog;

Contains the in-memory log of raw IMAP commands and server responses.

KeepSessionLog must be 1 for logging to occur. Call ClearSessionLog to remove previously collected entries.

Chilkat redacts sensitive credentials, including passwords and OAuth access tokens, from session logs, diagnostic logs, and LastErrorText.

More Information and Examples
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SocksHostname
# $strVal is a string
my $strVal = $imap->SocksHostname;
$imap->SocksHostname($strVal);

Specifies the hostname or numeric IP address of the SOCKS proxy.

This property is used only when SocksVersion is 4 or 5.

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SocksPassword
# $strVal is a string
my $strVal = $imap->SocksPassword;
$imap->SocksPassword($strVal);

Specifies the SOCKS5 proxy password.

It is ignored for SOCKS4 because SOCKS4 does not define password authentication.

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SocksPort
# $intVal is an integer
my $intVal = $imap->SocksPort;
$imap->SocksPort($intVal);

Specifies the SOCKS proxy port. The default is 1080.

This property is used only when SocksVersion is 4 or 5.

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SocksUsername
# $strVal is a string
my $strVal = $imap->SocksUsername;
$imap->SocksUsername($strVal);

Specifies the username sent to a SOCKS4 or SOCKS5 proxy.

This property is used only when SocksVersion is 4 or 5.

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SocksVersion
# $intVal is an integer
my $intVal = $imap->SocksVersion;
$imap->SocksVersion($intVal);

Selects whether the IMAP connection uses a SOCKS proxy.

ValueBehavior
0Do not use a SOCKS proxy. This is the default.
4Connect through a SOCKS4 proxy.
5Connect through a SOCKS5 proxy.

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SoRcvBuf
# $intVal is an integer
my $intVal = $imap->SoRcvBuf;
$imap->SoRcvBuf($intVal);

Sets the operating system's TCP receive-buffer size. The default is 4194304 bytes.

Most applications should leave this unchanged. Increasing it may improve download throughput on high-latency or high-bandwidth networks. Values that are multiples of 4096 are recommended.

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SortCriteria
# $strVal is a string
my $strVal = $imap->SortCriteria;
$imap->SortCriteria($strVal);
Introduced in version 11.0.0

Specifies the sort order used by QueryMbx. The default is the empty string, which uses an ordinary IMAP SEARCH.

Set this property to a space-separated list of sort keys. Sorting is ascending unless REVERSE precedes a key. Supported keys are ARRIVAL, CC, DATE, FROM, SIZE, SUBJECT, and TO.

Examples:

  • SUBJECT REVERSE DATE
  • REVERSE SIZE
  • ARRIVAL

If the server does not support the IMAP SORT extension, Chilkat automatically falls back to an ordinary SEARCH.

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SoSndBuf
# $intVal is an integer
my $intVal = $imap->SoSndBuf;
$imap->SoSndBuf($intVal);

Sets the operating system's TCP send-buffer size. The default is 262144 bytes.

Most applications should leave this unchanged. Increasing it may improve upload throughput; values such as 524288 or 1048576 may be tested when needed.

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Ssl
# $boolVal is a boolean
my $boolVal = $imap->Ssl;
$imap->Ssl($boolVal);

Controls implicit TLS for the IMAP connection. The default is 0.

  • 1: begin the connection with a TLS handshake, typically on port 993.
  • 0: begin with ordinary IMAP. Use StartTls when the server requires an explicit STARTTLS upgrade.

If both this property and StartTls are 1, implicit TLS takes precedence and STARTTLS is not used.

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SslAllowedCiphers
# $strVal is a string
my $strVal = $imap->SslAllowedCiphers;
$imap->SslAllowedCiphers($strVal);
Introduced in version 9.5.0.48

Restricts the cipher suites and selected TLS security requirements offered for an IMAP TLS connection.

Leave this property empty to allow all cipher suites implemented by the installed Chilkat version. To restrict negotiation, provide a comma-separated list in preference order, for example:

TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

The server chooses from the cipher suites offered by the client; the client cannot force a suite the server does not support.

The list may also contain these policy keywords:

  • rsa1024 or rsa2048 to require a minimum RSA server-key size.
  • secure-renegotiation to require secure TLS renegotiation.
  • best-practices to use the security policy recommended by the installed Chilkat version.

Legacy keywords such as aes256-cbc, aes128-cbc, 3des-cbc, and rc4 remain recognized for compatibility, but explicitly listing acceptable suites is preferred.

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SslProtocol
# $strVal is a string
my $strVal = $imap->SslProtocol;
$imap->SslProtocol($strVal);

Selects the TLS protocol version or minimum version allowed for secure IMAP connections.

The complete list of accepted values is:

  • default
  • TLS 1.3
  • TLS 1.2
  • TLS 1.1
  • TLS 1.0
  • SSL 3.0
  • TLS 1.3 or higher
  • TLS 1.2 or higher
  • TLS 1.1 or higher
  • TLS 1.0 or higher

The default is default, which allows Chilkat to negotiate a protocol supported by both client and server. A minimum-version setting is generally more interoperable than requiring one exact version.

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SslServerCertVerified
# $boolVal is a boolean (read-only)
my $boolVal = $imap->SslServerCertVerified;

Indicates whether the IMAP server certificate chain was successfully verified for the current or most recent TLS connection.

This property reports certificate-chain verification only. It does not report hostname matching or public-key pinning. If hostname matching or pinning is required and the check fails, the connection itself fails.

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StartTls
# $boolVal is a boolean
my $boolVal = $imap->StartTls;
$imap->StartTls($boolVal);

Controls explicit TLS using the IMAP STARTTLS command. The default is 0.

  • 1: connect in clear text, issue STARTTLS, and then continue through an encrypted channel.
  • 0: do not request an explicit TLS upgrade.

Explicit TLS is commonly used on port 143. For implicit TLS, set Ssl to 1 and normally use port 993. If both properties are 1, Ssl takes precedence.

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TlsCipherSuite
# $strVal is a string (read-only)
my $strVal = $imap->TlsCipherSuite;
Introduced in version 9.5.0.49

Contains the cipher suite negotiated for the current or most recent TLS connection, for example TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384.

The value is empty before a TLS connection has been established or after a failed TLS negotiation.

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TlsPinSet
# $strVal is a string
my $strVal = $imap->TlsPinSet;
$imap->TlsPinSet($strVal);
Introduced in version 9.5.0.55

Specifies one or more expected SPKI fingerprints for TLS public-key pinning. If none of the configured pins matches the server certificate, the TLS handshake fails.

Pinning supplements normal certificate-chain verification; it does not replace it. A matching pin does not make an expired or otherwise invalid certificate acceptable. When a pin set is configured, pin matching is enforced even if RequireSslCertVerify is 0.

The format is:

hashAlgorithm, encoding, fingerprint1, fingerprint2, ...

Example:

sha256, base64, lKg1SIqyhPSK19tlPbjl8s02yChsVTDklQpkMCHvsTE=

Supported hash algorithms include sha1, sha256, sha384, sha512, md2, md5, haval, ripemd128, ripemd160, ripemd256, and ripemd320. Supported encodings include base64, hex, and other Chilkat-supported binary encodings.

More Information and Examples
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TlsVersion
# $strVal is a string (read-only)
my $strVal = $imap->TlsVersion;
Introduced in version 9.5.0.49

Contains the protocol version negotiated for the current or most recent TLS connection, such as TLS 1.2 or TLS 1.3.

The value is empty before a TLS connection has been established or after a failed TLS negotiation.

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UidNext
# $intVal is an integer (read-only)
my $intVal = $imap->UidNext;

Contains the mailbox's reported UIDNEXT value—the UID expected to be assigned to the next appended message.

The value is 0 when no mailbox is selected or when the server did not provide UIDNEXT.

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UidValidity
# $intVal is an integer (read-only)
my $intVal = $imap->UidValidity;

Contains the UIDVALIDITY value of the currently selected mailbox, or 0 when no mailbox is selected.

An application that stores message UIDs should also store this value. If UIDVALIDITY changes in a later session, previously stored UIDs must no longer be assumed to identify the same messages.

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UncommonOptions
# $strVal is a string
my $strVal = $imap->UncommonOptions;
$imap->UncommonOptions($strVal);
Introduced in version 9.5.0.80

Provides comma-separated compatibility or platform-specific options for uncommon cases. The default is an empty string, and most applications should leave it unchanged.

  • ProtectFromVpn: on Android, bypasses an installed or active VPN.
  • EnableTls13: legacy option that enabled offering TLS 1.3 in versions where it was not yet enabled by default.

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VerboseLogging
# $boolVal is a boolean
my $boolVal = $imap->VerboseLogging;
$imap->VerboseLogging($boolVal);

If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
# $strVal is a string (read-only)
my $strVal = $imap->Version;

Version of the component/library, such as "10.1.0"

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Methods

AddPfxSourceBd
# $bd is a Chilkat2::BinData
# $password is a string
# $success is true or false
my $success = $imap->AddPfxSourceBd($bd, $password);
Introduced in version 11.0.0

Adds the PKCS #12/PFX data in the BinData in $bd as a source of certificates and private keys for S/MIME processing.

$password contains the PFX password. Call this method once for each additional source.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AddPfxSourceFile
# $pfxFilePath is a string
# $pfxPassword is a string
# $success is true or false
my $success = $imap->AddPfxSourceFile($pfxFilePath, $pfxPassword);

Adds a PKCS #12/PFX file that may be searched for certificates and private keys needed for S/MIME decryption or signature processing.

$pfxFilePath is the local filesystem path of the PFX file, and $pfxPassword contains its password. Call this method once for each additional source.

On Windows, system certificate stores are also searched automatically. On macOS, the Keychain is searched automatically.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AppendMail
# $mailbox is a string
# $email is a Chilkat2::Email
# $success is true or false
my $success = $imap->AppendMail($mailbox, $email);

Appends the Email in $email to the mailbox named by $mailbox.

AppendSeen controls the initial \Seen flag. After success, AppendUid contains the UID reported by the server, or 0 if no UID was reported, and LastAppendedMime contains the MIME sent.

Rendering for the append does not generate or replace $email's Date, Message-ID, or MIME boundary values. If $email uses an 8bit or binary transfer encoding that would produce non-text binary bytes, Chilkat changes the rendered transfer encoding to a text-safe encoding such as Base64.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AppendMime
# $mailbox is a string
# $mimeText is a string
# $success is true or false
my $success = $imap->AppendMime($mailbox, $mimeText);

Appends the complete RFC 822/MIME message in $mimeText to the mailbox named by $mailbox.

AppendSeen controls the initial \Seen flag. After success, AppendUid contains the UID reported by the server, or 0 if no UID was reported, and LastAppendedMime contains the MIME sent.

The MIME text is sent exactly as supplied. Chilkat does not normalize line endings, add a final CRLF, or re-encode headers or body content. The supplied text must not contain non-text binary bytes.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AppendMimeWithDateStr
# $mailbox is a string
# $mimeText is a string
# $internalDateStr is a string
# $success is true or false
my $success = $imap->AppendMimeWithDateStr($mailbox, $mimeText, $internalDateStr);

Appends the MIME message in $mimeText to the mailbox named by $mailbox while explicitly setting the server-side internal date from $internalDateStr.

$internalDateStr is an RFC 822 date/time string, for example Fri, 10 Jul 2026 20:15:30 GMT. The internal date is mailbox metadata and is distinct from the message's Date header. AppendSeen controls the initial \Seen flag.

The MIME text is sent exactly as supplied. Chilkat does not normalize line endings, add a final CRLF, or re-encode headers or body content. The supplied text must not contain non-text binary bytes.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AppendMimeWithFlags
# $mailbox is a string
# $mimeText is a string
# $seen is a boolean
# $flagged is a boolean
# $answered is a boolean
# $draft is a boolean
# $success is true or false
my $success = $imap->AppendMimeWithFlags($mailbox, $mimeText, $seen, $flagged, $answered, $draft);

Appends the MIME message in $mimeText to the mailbox named by $mailbox and sets its initial system flags.

  • $seen controls \Seen.
  • $flagged controls \Flagged.
  • $answered controls \Answered.
  • $draft controls \Draft.

Use 1 to set a flag and 0 to leave it unset. The explicit flag arguments are used instead of AppendSeen.

The MIME text is sent exactly as supplied. Chilkat does not normalize line endings, add a final CRLF, or re-encode headers or body content. The supplied text must not contain non-text binary bytes.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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AppendMimeWithFlagsSb
# $mailbox is a string
# $sbMime is a Chilkat2::StringBuilder
# $seen is a boolean
# $flagged is a boolean
# $answered is a boolean
# $draft is a boolean
# $success is true or false
my $success = $imap->AppendMimeWithFlagsSb($mailbox, $sbMime, $seen, $flagged, $answered, $draft);
Introduced in version 9.5.0.62

Appends the MIME contained in the StringBuilder in $sbMime to mailbox $mailbox and sets its initial system flags.

  • $seen controls \Seen.
  • $flagged controls \Flagged.
  • $answered controls \Answered.
  • $draft controls \Draft.

The explicit flag arguments are used instead of AppendSeen.

The MIME text is sent exactly as supplied. Chilkat does not normalize line endings, add a final CRLF, or re-encode headers or body content. The supplied text must not contain non-text binary bytes.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Capability
# $str is a string or undef
my $str = $imap->Capability();

Sends the IMAP CAPABILITY command and returns the server's raw capability response.

Use HasCapability to test the returned text for a particular capability such as IDLE, MOVE, SORT, or QUOTA.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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CheckConnection
# $flag is true or false
my $flag = $imap->CheckConnection();
Introduced in version 9.5.0.46

Checks whether the underlying TCP socket is currently connected to the IMAP server.

This performs a low-level socket-state check and does not send an IMAP command. To verify that the server is responsive and the session remains usable, call Noop.

Never dies: false is an answer, not a failure.

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ClearSessionLog
$imap->ClearSessionLog();

Clears the in-memory text returned by SessionLog.

Session logging remains enabled or disabled according to KeepSessionLog.

Returns the object, so calls can be chained.

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CloseMailbox
# $mailbox is a string
# $success is true or false
my $success = $imap->CloseMailbox($mailbox);

Closes the currently selected mailbox while keeping the authenticated IMAP connection open.

$mailbox is retained for backward compatibility but is ignored. It may be the empty string. Messages marked with \Deleted are permanently removed as part of the close operation. After success, SelectedMailbox is empty, but another mailbox can be selected on the same connection.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Connect
# $domainName is a string
# $success is true or false
my $success = $imap->Connect($domainName);

Establishes a TCP connection to the IMAP server identified by $domainName but does not authenticate.

$domainName may be a hostname, IPv4 address, or IPv6 address. Configure Port, Ssl, StartTls, proxy settings, and timeouts before calling this method. The TLS hostname is used for Server Name Indication (SNI) and certificate hostname comparison. Call Login after the connection succeeds.

If this method is called while already connected, Chilkat tears down the existing connection and establishes a new connection to $domainName. This applies even when $domainName names the same server.

Imap does not automatically reconnect after a connection is dropped. The application must call this method again, authenticate again, reselect a mailbox when needed, and retry the interrupted operation.

Connection failures can also be caused by DNS, local or remote firewalls, antivirus software, routing, or other network infrastructure outside Chilkat.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Copy
# $msgId is an integer
# $bUid is a boolean
# $copyToMailbox is a string
# $success is true or false
my $success = $imap->Copy($msgId, $bUid, $copyToMailbox);

Copies one message from the currently selected mailbox to the destination mailbox in $copyToMailbox.

$msgId identifies the source message. If $bUid is 1, $msgId is a UID; otherwise, $msgId is a sequence number. The original message remains in the selected mailbox.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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CopyMultiple
# $messageSet is a Chilkat2::MessageSet
# $copyToMailbox is a string
# $success is true or false
my $success = $imap->CopyMultiple($messageSet, $copyToMailbox);

Copies the messages identified by the MessageSet in $messageSet from the selected mailbox to destination mailbox $copyToMailbox using one IMAP command.

MessageSet.HasUids determines whether $messageSet contains UIDs or sequence numbers. For sequence numbers, one invalid value causes the entire command to fail and no messages are copied. For UIDs, nonexistent values are silently ignored and valid messages are copied. The original messages remain in the selected mailbox.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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CopySequence
# $startSeqNum is an integer
# $count is an integer
# $copyToMailbox is a string
# $success is true or false
my $success = $imap->CopySequence($startSeqNum, $count, $copyToMailbox);

Copies a contiguous range of messages, identified by sequence number, from the selected mailbox to the destination mailbox in $copyToMailbox.

$startSeqNum is the first sequence number and $count is the number of messages to copy. IMAP sequence numbers begin at 1 and can change when messages are expunged.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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CreateMailbox
# $mailbox is a string
# $success is true or false
my $success = $imap->CreateMailbox($mailbox);

Creates the mailbox named by $mailbox on the IMAP server.

Use the hierarchy delimiter reported in SeparatorChar when creating a nested mailbox. In IMAP terminology, mailbox and folder are synonymous.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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DeleteMailbox
# $mailbox is a string
# $success is true or false
my $success = $imap->DeleteMailbox($mailbox);

Deletes the mailbox named by $mailbox from the IMAP server.

This deletes the mailbox itself, not merely the messages it contains. Server rules may require the mailbox to be empty first.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Disconnect
# $success is true or false
my $success = $imap->Disconnect();

Closes the connection to the IMAP server.

A failure indicates that the connection could not be closed cleanly; the socket is nevertheless no longer intended for further use. In many applications, a disconnect failure during shutdown can be treated as nonfatal.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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ExamineMailbox
# $mailbox is a string
# $success is true or false
my $success = $imap->ExamineMailbox($mailbox);

Opens the mailbox in $mailbox as read-only.

Use this instead of SelectMailbox when the application must not change message flags or mailbox state. Successful examination updates properties such as NumMessages, UidValidity, and UidNext.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Expunge
# $success is true or false
my $success = $imap->Expunge();

Permanently removes all messages marked with the \Deleted flag from the currently selected mailbox.

The mailbox remains selected and the authenticated connection remains open. Expunging can change sequence numbers for the remaining messages.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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ExpungeAndClose
# $success is true or false
my $success = $imap->ExpungeAndClose();

Permanently removes all messages marked with \Deleted from the selected mailbox and then closes the mailbox.

After success, SelectedMailbox is empty. The authenticated IMAP connection remains open and can be used to select another mailbox.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchAttachment
# $emailObject is a Chilkat2::Email
# $attachmentIndex is an integer
# $saveToPath is a string
# $success is true or false
my $success = $imap->FetchAttachment($emailObject, $attachmentIndex, $saveToPath);

Obtains attachment $attachmentIndex from the Email in $emailObject and writes it to the filesystem path in $saveToPath. Attachment indexes are zero-based.

$saveToPath may be a filename, a relative path ending in a filename, or an absolute path ending in a filename. Missing parent directories are not created. An existing file is overwritten. A failed operation should not leave a partial output file.

If $emailObject already contains the attachment bytes, the data is saved without contacting the IMAP server. If $emailObject was fetched without attachment bodies, Chilkat uses its ckx-imap-* metadata to locate and download the requested MIME part. The same IMAP session is not required, and a copied Email can be used if the metadata is preserved.

The corresponding mailbox must be selected when a server fetch is required. If ckx-imap-isUid is YES, the permanent UID is used and the operation can work after reconnecting. If it is NO, the stored value is a sequence number, which can identify a different message after an expunge. UID-based metadata is therefore preferred for deferred attachment operations. The method fails if the referenced message or MIME part no longer exists, such as after the message is moved or expunged.

Related MIME parts used by an HTML body are not counted as ordinary attachments. Signed and encrypted messages are fetched in full because their complete MIME is required.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchAttachmentBd
# $email is a Chilkat2::Email
# $attachmentIndex is an integer
# $binData is a Chilkat2::BinData
# $success is true or false
my $success = $imap->FetchAttachmentBd($email, $attachmentIndex, $binData);
Introduced in version 9.5.0.62

Obtains attachment $attachmentIndex from the Email in $email and stores its bytes in the BinData in $binData.

Attachment indexes are zero-based. $binData is always cleared first. On success it contains the complete attachment bytes; on failure it remains empty.

See FetchAttachment for details about downloading attachment data not already present in $email.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchAttachmentSb
# $email is a Chilkat2::Email
# $attachmentIndex is an integer
# $charset is a string
# $sb is a Chilkat2::StringBuilder
# $success is true or false
my $success = $imap->FetchAttachmentSb($email, $attachmentIndex, $charset, $sb);
Introduced in version 9.5.0.62

Obtains text attachment $attachmentIndex from the Email in $email, decodes it using the charset in $charset, and stores the text in the StringBuilder in $sb.

Attachment indexes are zero-based. $sb is always cleared first. On success it contains the complete decoded attachment text; on failure it remains empty. Use this method only for text attachments.

See FetchAttachment for details about downloading data not already present in $email.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchAttachmentString
# $emailObject is a Chilkat2::Email
# $attachmentIndex is an integer
# $charset is a string
# $str is a string or undef
my $str = $imap->FetchAttachmentString($emailObject, $attachmentIndex, $charset);

Obtains text attachment $attachmentIndex from the Email in $emailObject and decodes its bytes using the character encoding named by $charset.

Use this only when the attachment contains text. Attachment indexes are zero-based. See FetchAttachment for information about downloading attachment data that is not already present in $emailObject.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchChunk2
# $seqnum is an integer
# $count is an integer
# $failedSet is a Chilkat2::MessageSet
# $fetchedSet is a Chilkat2::MessageSet
# $bundle is a Chilkat2::EmailBundle
# $success is true or false
my $success = $imap->FetchChunk2($seqnum, $count, $failedSet, $fetchedSet, $bundle);
Introduced in version 11.0.0

Attempts to download $count full messages beginning with sequence number $seqnum.

$failedSet and $fetchedSet are cleared before use. $failedSet receives sequence numbers that failed or were not yet fetched, $fetchedSet receives sequence numbers fetched successfully, and both sets have MessageSet.HasUids set to 0. Downloaded messages are appended to the EmailBundle in $bundle, which is not cleared.

Sequence numbers beyond the end of the mailbox are added to $failedSet. The method can return success even when $failedSet is nonempty; success indicates that the requested range was processed, not that every sequence number existed.

If a network failure occurs, messages already fetched remain in $bundle, $fetchedSet retains the successfully fetched sequence numbers, and $failedSet contains the failed and not-yet-fetched sequence numbers. Processing stops and the connection must be considered unusable.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchEmail
# $headerOnly is a boolean
# $msgId is an integer
# $bUid is a boolean
# $email is a Chilkat2::Email
# $success is true or false
my $success = $imap->FetchEmail($headerOnly, $msgId, $bUid, $email);
Introduced in version 11.0.0

Downloads one message or its headers into the Email in $email.

  • $headerOnly = 1: download headers only.
  • $headerOnly = 0: download the full message.
  • $bUid = 1: $msgId is a UID.
  • $bUid = 0: $msgId is a sequence number.

On success, $email is replaced with the fetched email. On failure, $email remains unchanged.

A header-only result contains no body or attachment bodies, but includes ckx-imap-* metadata for the message identifier, flags, total size, and attachment information. For a full download, ordinary attachment bodies are included according to AutoDownloadAttachments. PeekMode controls whether a full fetch sets \Seen; a header-only fetch does not set it.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchFlags
# $msgId is an integer
# $bUid is a boolean
# $str is a string or undef
my $str = $imap->FetchFlags($msgId, $bUid);

Returns the space-separated IMAP flags for the message identified by $msgId.

If $bUid is 1, $msgId is a UID; otherwise, it is a sequence number. A result might be \Flagged \Seen $label1.

An existing message with no flags returns the empty string. A nonexistent message is an error.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchMsgSet
# $headersOnly is a boolean
# $msgSet is a Chilkat2::MessageSet
# $bundle is a Chilkat2::EmailBundle
# $success is true or false
my $success = $imap->FetchMsgSet($headersOnly, $msgSet, $bundle);
Introduced in version 11.0.0

Downloads the existing messages identified by the MessageSet in $msgSet and appends them to the EmailBundle in $bundle. $bundle is not cleared.

  • $headersOnly = 1: download headers only.
  • $headersOnly = 0: download full messages, with ordinary attachments controlled by AutoDownloadAttachments.

MessageSet.HasUids determines whether $msgSet contains UIDs or sequence numbers. A MessageSet is a true set, so duplicate identifiers are collapsed before any command is sent. Identifiers that do not exist are omitted without causing the method to fail. Do not rely on insertion order; fetched messages are returned in the order supplied by the IMAP server, normally mailbox order.

If a network failure occurs after some messages have been downloaded, those messages remain appended to $bundle, fetching stops immediately, and the connection must be considered unusable. Reconnect, authenticate, and reselect the mailbox before retrying.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchRange
# $headersOnly is a boolean
# $seqnum is an integer
# $count is an integer
# $bundle is a Chilkat2::EmailBundle
# $success is true or false
my $success = $imap->FetchRange($headersOnly, $seqnum, $count, $bundle);
Introduced in version 11.0.0

Downloads $count messages beginning with sequence number $seqnum and appends them to the EmailBundle in $bundle. $bundle is not cleared.

  • $headersOnly = 1: download headers only.
  • $headersOnly = 0: download full messages, with ordinary attachments controlled by AutoDownloadAttachments.

$seqnum and $count must both be greater than 0. IMAP sequence numbers begin at 1; passing 0 for $seqnum, 0 for $count, or a negative count fails without changing $bundle. Only messages that exist in the requested sequence-number range are appended. Sequence numbers can change after messages are expunged.

If a network failure occurs after some messages have been downloaded, those messages remain appended to $bundle, fetching stops immediately, and the connection must be considered unusable.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchSingleAsMime
# $msgId is an integer
# $bUid is a boolean
# $str is a string or undef
my $str = $imap->FetchSingleAsMime($msgId, $bUid);

Downloads one message and returns its MIME source as a string.

If $bUid is 1, $msgId is a UID; otherwise, $msgId is a sequence number. Ordinary attachment bodies are included according to AutoDownloadAttachments.

Chilkat interprets the received MIME bytes as UTF-8. MIME using Base64 or quoted-printable transfer encoding is safe because the encoded bytes are ASCII. Raw 8bit or binary content, or unencoded text in another charset such as ISO-8859-1 or Shift_JIS, can be misinterpreted or cause an error. Use FetchSingleBd whenever byte-exact MIME is required.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchSingleAsMimeSb
# $msgId is an integer
# $bUid is a boolean
# $sbMime is a Chilkat2::StringBuilder
# $success is true or false
my $success = $imap->FetchSingleAsMimeSb($msgId, $bUid, $sbMime);
Introduced in version 9.5.0.62

Downloads one message's MIME into the StringBuilder in $sbMime.

If $bUid is 1, $msgId is a UID; otherwise, $msgId is a sequence number. Ordinary attachment bodies are included according to AutoDownloadAttachments. $sbMime is cleared before the operation; on failure it remains empty.

Chilkat interprets the received MIME bytes as UTF-8. MIME using Base64 or quoted-printable transfer encoding is safe because the encoded bytes are ASCII. Raw 8bit or binary content, or unencoded text in another charset such as ISO-8859-1 or Shift_JIS, can be misinterpreted or cause an error. Use FetchSingleBd whenever byte-exact MIME is required.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchSingleBd
# $msgId is an integer
# $bUid is a boolean
# $mimeData is a Chilkat2::BinData
# $success is true or false
my $success = $imap->FetchSingleBd($msgId, $bUid, $mimeData);
Introduced in version 9.5.0.76

Downloads one message's MIME bytes into the BinData in $mimeData.

If $bUid is 1, $msgId is a UID; otherwise, it is a sequence number. Ordinary attachment bodies are included according to AutoDownloadAttachments, and PeekMode controls whether the fetch sets \Seen.

$mimeData is cleared before the operation. On success it contains the downloaded MIME bytes; on failure it remains empty.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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FetchSingleHeaderAsMime
# $msgId is an integer
# $bUID is a boolean
# $str is a string or undef
my $str = $imap->FetchSingleHeaderAsMime($msgId, $bUID);

Downloads and returns the MIME header block for one message, without downloading the body.

If $bUID is 1, $msgId is a UID; otherwise, $msgId is a sequence number.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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GetMailAttachFilename
# $email is a Chilkat2::Email
# $attachIndex is an integer
# $str is a string or undef
my $str = $imap->GetMailAttachFilename($email, $attachIndex);

Returns the filename for attachment $attachIndex represented by $email. Attachment indexes are zero-based.

This method can obtain the filename from ckx-imap-* metadata in a header-only email even when the attachment body has not been downloaded.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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GetMailAttachSize
# $email is a Chilkat2::Email
# $attachIndex is an integer
# $n is an integer
my $n = $imap->GetMailAttachSize($email, $attachIndex);

Returns the size in bytes of attachment $attachIndex represented by $email. Attachment indexes are zero-based.

This method can obtain the size from ckx-imap-* metadata in a header-only email even when the attachment body has not been downloaded.

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GetMailboxStatus
# $mailbox is a string
# $str is a string or undef
my $str = $imap->GetMailboxStatus($mailbox);
Introduced in version 9.5.0.46

Sends the IMAP STATUS command for the mailbox in $mailbox and returns the reported values as XML attributes.

  • messages: total number of messages.
  • recent: messages having the \Recent flag.
  • uidnext: expected UID for the next appended message.
  • uidvalidity: mailbox UID-validity value.
  • unseen: messages without the \Seen flag.
<status messages="240" recent="0" uidnext="3674" uidvalidity="3" unseen="213" />

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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GetMailFlag
# $email is a Chilkat2::Email
# $flagName is a string
# $n is an integer
my $n = $imap->GetMailFlag($email, $flagName);

Returns the state of the flag named by $flagName from the IMAP metadata stored in the Email in $email.

  • 1: the flag is set.
  • 0: the flag is not set.
  • -1: the required ckx-imap-* metadata is missing.

Standard flags include \Seen, \Answered, \Flagged, \Draft, and \Deleted. Custom keywords such as $label1 or NonJunk are also supported.

Integer-returning methods do not use LastMethodSuccess to report this condition; test the return value directly.

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GetMailNumAttach
# $email is a Chilkat2::Email
# $n is an integer
my $n = $imap->GetMailNumAttach($email);

Returns the number of ordinary attachments represented by $email.

This method also works with a header-only email or an email fetched while AutoDownloadAttachments was 0. In those cases it reads the ckx-imap-numAttach metadata, even though the Email object's downloaded attachment count can be 0.

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GetMailSize
# $email is a Chilkat2::Email
# $n is an integer
my $n = $imap->GetMailSize($email);

Returns the complete server-reported size of the Email in $email, in bytes, including attachment data.

This value may be available even when only the message headers were downloaded.

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GetQuota
# $quotaRoot is a string
# $str is a string or undef
my $str = $imap->GetQuota($quotaRoot);
Introduced in version 9.5.0.58

Sends the IMAP GETQUOTA command for the quota root in $quotaRoot and returns the server response as JSON.

The server must advertise the IMAP QUOTA capability.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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GetQuotaRoot
# $mailboxName is a string
# $str is a string or undef
my $str = $imap->GetQuotaRoot($mailboxName);
Introduced in version 9.5.0.58

Sends the IMAP GETQUOTAROOT command for the mailbox in $mailboxName and returns the server response as JSON. The server must advertise the IMAP QUOTA capability.

A response can contain both the mailbox-to-root mapping and the quota values:

{
  "QUOTAROOT": {"mailbox":"Inbox","root":"Mailbox"},
  "QUOTA": {"root":"Mailbox","resource":"STORAGE","used":9,"max":256000}
}

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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GetServerCert
# $cert is a Chilkat2::Cert
# $success is true or false
my $success = $imap->GetServerCert($cert);
Introduced in version 11.0.0

Stores the certificate presented by the IMAP server for the current or most recent TLS connection in the Cert object supplied as $cert.

This is useful for certificate inspection, diagnostics, or implementing application-specific trust checks.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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HasCapability
# $name is a string
# $capabilityResponse is a string
# $flag is true or false
my $flag = $imap->HasCapability($name, $capabilityResponse);
Introduced in version 9.5.0.58

Tests whether the capability named by $name appears in the raw capability response in $capabilityResponse.

$capabilityResponse is typically the string returned by Capability. Capability-name matching follows IMAP capability-token semantics.

Never dies: false is an answer, not a failure.

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IdleCheck
# $timeoutMs is an integer
# $str is a string or undef
my $str = $imap->IdleCheck($timeoutMs);
Introduced in version 9.5.0.26

Waits up to $timeoutMs milliseconds for unsolicited mailbox updates after IdleStart has entered IMAP IDLE mode.

$timeoutMs = 0 performs a strict poll: it checks for already available data and returns immediately. Positive values wait for up to the requested time, including very large values. If the connection is lost while waiting, the method fails.

This method does not send a polling command. It consumes the notifications currently waiting on the existing connection and returns them as XML. A second call returns only notifications that arrived after the previous call.

  • flags: flags changed for a message.
  • expunge: a sequence number was removed.
  • exists: the mailbox message count changed.
  • recent: the recent-message count changed.
  • raw: an unrecognized response line retained for diagnostics.
<idle><exists>115</exists><recent>1</recent></idle>

When no update is available, the result is <idle></idle>. An exists notification does not automatically change NumMessages.

Chilkat does not automatically refresh IDLE. The application should periodically call IdleDone and IdleStart, typically before 29 minutes have elapsed, to prevent servers with a 30-minute limit from dropping the connection.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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IdleDone
# $success is true or false
my $success = $imap->IdleDone();
Introduced in version 9.5.0.26

Ends IMAP IDLE mode by sending the protocol's DONE continuation.

The authenticated connection remains open and usable. Calling this method when IDLE is not active fails.

Applications maintaining a long-lived IDLE connection should call this method shortly before the server's IDLE limit, commonly at about 29 minutes, and then immediately call IdleStart again.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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IdleStart
# $success is true or false
my $success = $imap->IdleStart();
Introduced in version 9.5.0.26

Sends the IMAP IDLE command and begins listening for unsolicited mailbox updates.

The session must be connected, authenticated, and have a mailbox selected with SelectMailbox or ExamineMailbox. The server must advertise the IDLE capability.

Calling this method while IDLE is already active fails. While IDLE is active, any other method that sends an IMAP command also fails; call IdleDone first.

Chilkat does not automatically renew IDLE. To avoid common server time limits, the application should end and restart IDLE before the server timeout, typically about every 29 minutes.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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IsConnected
# $flag is true or false
my $flag = $imap->IsConnected();

Returns the last known connection state without sending data to the IMAP server.

A 1 result does not prove that an idle connection is still usable. Call Noop to send a command and verify that the server responds.

Never dies: false is an answer, not a failure.

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IsLoggedIn
# $flag is true or false
my $flag = $imap->IsLoggedIn();

Indicates whether this object is in an authenticated IMAP session.

This reports the last known state and does not send a command to the server.

Never dies: false is an answer, not a failure.

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Login
# $loginName is a string
# $password is a string
# $success is true or false
my $success = $imap->Login($loginName, $password);

Authenticates the connected IMAP session using the login name in $loginName and the credential in $password.

Call Connect first. The mechanism is selected by AuthMethod.

For XOAUTH2, $loginName is the normal IMAP login name or email address and $password is the raw OAuth 2.0 access token without a Bearer prefix. A failed XOAUTH2 login leaves the connection open so the application may correct the credentials and try again.

Do not call this method again after the session is already authenticated. A repeated login attempt fails, although the existing authenticated session remains logged in.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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LoginSecure
# $loginName is a Chilkat2::SecureString
# $password is a Chilkat2::SecureString
# $success is true or false
my $success = $imap->LoginSecure($loginName, $password);
Introduced in version 9.5.0.71

Authenticates the connected IMAP session using the SecureString login name in $loginName and credential in $password.

This is the secure-string counterpart of Login. The authentication mechanism is selected by AuthMethod.

For XOAUTH2, $loginName contains the normal login name or email address and $password contains the raw access token without a Bearer prefix.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Logout
# $success is true or false
my $success = $imap->Logout();

Sends the IMAP LOGOUT command and ends the authenticated session.

The server normally closes the connection as part of a successful logout.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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MbxList
# $subscribed is a boolean
# $reference is a string
# $mbxPattern is a string
# $mboxes is a Chilkat2::Mailboxes
# $success is true or false
my $success = $imap->MbxList($subscribed, $reference, $mbxPattern, $mboxes);
Introduced in version 11.0.0

Lists matching mailboxes and appends them to the Mailboxes object in $mboxes. $mboxes is not cleared on success, so repeated calls on the same object can add duplicate entries. If the method fails, $mboxes is unchanged.

  • $subscribed = 1: list only subscribed mailboxes.
  • $subscribed = 0: list all matching mailboxes.

$reference is the IMAP reference name, usually an empty string. $mbxPattern is the mailbox pattern: * matches zero or more hierarchy levels, while % matches one hierarchy level.

Applications may use normal Unicode mailbox names and patterns. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

The method also updates SeparatorChar from the server's response.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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MoveMessages
# $messageSet is a Chilkat2::MessageSet
# $destFolder is a string
# $success is true or false
my $success = $imap->MoveMessages($messageSet, $destFolder);
Introduced in version 9.5.0.64

Moves the messages identified by the MessageSet in $messageSet from the selected mailbox to destination mailbox $destFolder using one IMAP MOVE command.

The server must advertise the MOVE capability. If it does not, this method fails and does not emulate the operation with copy, delete, and expunge commands.

MessageSet.HasUids determines whether $messageSet contains UIDs or sequence numbers. For sequence numbers, one invalid value causes complete failure and nothing is moved. For UIDs, nonexistent values are silently ignored and valid messages are moved.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Noop
# $success is true or false
my $success = $imap->Noop();

Sends the IMAP NOOP command and waits for the server response.

This is useful for verifying that an existing authenticated connection is still responsive and for receiving unsolicited mailbox-state updates.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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QueryMbx
# $criteria is a string
# $bUid is a boolean
# $msgSet is a Chilkat2::MessageSet
# $success is true or false
my $success = $imap->QueryMbx($criteria, $bUid, $msgSet);
Introduced in version 11.0.0

Searches the selected mailbox using the IMAP criteria in $criteria and stores matching identifiers in the MessageSet in $msgSet.

On success, $msgSet is replaced with the result. If $bUid is 1, $msgSet contains UIDs and MessageSet.HasUids is 1; otherwise, $msgSet contains sequence numbers and MessageSet.HasUids is 0. If the method fails, $msgSet is unchanged. SearchCharset applies when the criteria contain non-ASCII text.

For the special criterion new-email, Chilkat records each UIDNEXT received from SELECT, EXAMINE, or another IMAP response and uses it as the baseline for detecting later UIDs. If no UIDNEXT is available, Chilkat searches for messages having the \Recent flag. Results are always UIDs regardless of $bUid, and an empty result clears $msgSet.

When SortCriteria is nonempty, Chilkat uses IMAP SORT if the server supports it. Otherwise, it automatically falls back to an ordinary SEARCH.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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QueryThread
# $threadAlg is a string
# $searchCriteria is a string
# $bUid is a boolean
# $json is a Chilkat2::JsonObject
# $success is true or false
my $success = $imap->QueryThread($threadAlg, $searchCriteria, $bUid, $json);
Introduced in version 11.0.0

Sends the IMAP THREAD command for the selected mailbox.

$threadAlg is the threading algorithm, commonly ORDEREDSUBJECT or REFERENCES. $searchCriteria contains ordinary IMAP search criteria and is interpreted using SearchCharset. If $bUid is 1, message identifiers in the result are UIDs; otherwise, they are sequence numbers.

On success, $json is completely replaced with the thread hierarchy. On failure, $json is unchanged; there is no partial-success JSON result.

The returned JSON has a top-level threads array. Each element represents one thread, and nested arrays encode parent/child relationships. For example:

{"threads":[[1],[2],[3]]}

The server must advertise the IMAP THREAD capability and support the selected algorithm.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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RawCommandBd
# $bdCmd is a Chilkat2::BinData
# $bdResp is a Chilkat2::BinData
# $success is true or false
my $success = $imap->RawCommandBd($bdCmd, $bdResp);
Introduced in version 11.0.0

Sends the raw IMAP command bytes in the BinData in $bdCmd and stores the raw response bytes in $bdResp.

$bdCmd contains the command without an IMAP command tag or trailing CRLF; Chilkat supplies both. $bdResp is cleared and replaced with the response.

Use raw commands only for rare server extensions that are not otherwise exposed by the API, have an expected one-line response, and do not change Imap object state such as the selected mailbox, message count, UidNext, or UidValidity. State-changing raw commands can leave cached properties inconsistent with the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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RefetchMailFlags
# $email is a Chilkat2::Email
# $success is true or false
my $success = $imap->RefetchMailFlags($email);

Fetches the current IMAP flags for the server message represented by $email and updates its ckx-imap-* metadata headers.

Chilkat reads the identifier from ckx-imap-uid and checks ckx-imap-isUid to determine whether it is a UID or sequence number. A copied Email can be used as long as this metadata is preserved.

When ckx-imap-isUid is NO, the stored sequence number may identify a different message after an expunge. UID-based emails are preferred for later operations. Methods such as GetMailFlag read the refreshed flag metadata.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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RenameMailbox
# $fromMailbox is a string
# $toMailbox is a string
# $success is true or false
my $success = $imap->RenameMailbox($fromMailbox, $toMailbox);

Renames the mailbox in $fromMailbox to the name in $toMailbox.

Changing hierarchy components can also move a mailbox within the server's folder tree, for example from INBOX.old.project to INBOX.archive.project.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SelectMailbox
# $mailbox is a string
# $success is true or false
my $success = $imap->SelectMailbox($mailbox);

Opens the mailbox in $mailbox for read-write access.

A mailbox must be selected before message fetch, search, flag, copy, move, or expunge operations that act on mailbox contents. Successful selection updates SelectedMailbox, NumMessages, UidValidity, and related mailbox-state properties.

Use ExamineMailbox when read-only access is required.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SendRawCommand
# $cmd is a string
# $str is a string or undef
my $str = $imap->SendRawCommand($cmd);

Sends the raw IMAP command text in $cmd and returns the raw server response.

Pass the command itself, such as NOOP, without an IMAP command tag or trailing CRLF. Chilkat generates the tag and command line termination.

Use raw commands only for rare server extensions that are not otherwise exposed by the API, have an expected one-line response, and do not change Imap object state such as the selected mailbox, message count, UidNext, or UidValidity. State-changing raw commands can leave cached properties inconsistent with the server.

Returns undef on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetDecryptCert
# $cert is a Chilkat2::Cert
# $success is true or false
my $success = $imap->SetDecryptCert($cert);
Introduced in version 9.5.0.40

Specifies the Cert in $cert for decrypting S/MIME messages downloaded by this Imap object.

The certificate must have access to its associated private key. Use SetDecryptCert2 when the private key is supplied separately.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetDecryptCert2
# $cert is a Chilkat2::Cert
# $key is a Chilkat2::PrivateKey
# $success is true or false
my $success = $imap->SetDecryptCert2($cert, $key);

Specifies the certificate in $cert and its separately supplied PrivateKey in $key for decrypting S/MIME messages.

Use this when the certificate object does not already provide access to the private key.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetFlag
# $msgId is an integer
# $bUid is a boolean
# $flagName is a string
# $value is an integer
# $success is true or false
my $success = $imap->SetFlag($msgId, $bUid, $flagName, $value);

Sets or clears one flag on the message identified by $msgId in the selected mailbox.

If $bUid is 1, $msgId is a UID; otherwise, it is a sequence number. $flagName is the flag name, and $value is 1 to set the flag or 0 to clear it.

Standard flags include \Deleted, \Seen, \Answered, \Flagged, and \Draft. Server-supported custom keywords may also be used.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetFlags
# $messageSet is a Chilkat2::MessageSet
# $flagName is a string
# $value is an integer
# $success is true or false
my $success = $imap->SetFlags($messageSet, $flagName, $value);

Sets or clears one flag for every identifier in the MessageSet supplied in $messageSet.

$flagName is the flag name, and $value is 1 to set it or 0 to clear it. MessageSet.HasUids determines whether the identifiers are UIDs or sequence numbers. Chilkat sends one IMAP STORE or UID STORE command containing the complete identifier set.

IMAP bulk flag changes are not atomic and have no all-or-nothing rollback. Changes applied before a failure remain applied. For UID-based operations, nonexistent UIDs are silently ignored as required by IMAP. For sequence-number operations, an out-of-range sequence number causes the server to return an error; whether valid sequence numbers in the same command were changed before that error is server-dependent.

This method changes server state only. It does not update metadata in any previously fetched Email objects.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetMailFlag
# $email is a Chilkat2::Email
# $flagName is a string
# $value is an integer
# $success is true or false
my $success = $imap->SetMailFlag($email, $flagName, $value);

Sets or clears a flag for the server message represented by the Email in $email.

Chilkat reads the message identifier from ckx-imap-uid and uses ckx-imap-isUid to determine whether the value is a UID or sequence number. $flagName is the flag name, and $value is 1 to set it or 0 to clear it. The method fails if the required metadata is absent.

A copied Email can be used as long as the metadata is preserved. When ckx-imap-isUid is NO, the stored value is a sequence number and may no longer identify the same message after an expunge. UID-based emails are preferred for operations performed later or after reconnecting.

Setting \Deleted marks the message for deletion; call Expunge to remove it permanently.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetQuota
# $quotaRoot is a string
# $resource is a string
# $quota is an integer
# $success is true or false
my $success = $imap->SetQuota($quotaRoot, $resource, $quota);
Introduced in version 9.5.0.58

Sends the IMAP SETQUOTA command for quota root $quotaRoot.

$resource is STORAGE to set the combined message-storage limit or MESSAGE to set the message-count limit. For STORAGE, $quota is measured in units of 1024 octets; for example, 500000 represents approximately 500,000,000 bytes.

The server must support the IMAP QUOTA extension and the requested resource type.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetSslClientCert
# $cert is a Chilkat2::Cert
# $success is true or false
my $success = $imap->SetSslClientCert($cert);

Specifies the client certificate in $cert for TLS client-certificate authentication.

Most IMAP servers do not require a client certificate. When one is required, $cert must provide access to the corresponding private key.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetSslClientCertPem
# $pemDataOrFilename is a string
# $pemPassword is a string
# $success is true or false
my $success = $imap->SetSslClientCertPem($pemDataOrFilename, $pemPassword);

Specifies a TLS client certificate and private key from PEM data or a PEM file.

$pemDataOrFilename may contain the PEM text itself or a local filesystem path to the PEM file; Chilkat detects which form was supplied. $pemPassword contains the password when the private key is encrypted.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SetSslClientCertPfx
# $pfxFilename is a string
# $pfxPassword is a string
# $success is true or false
my $success = $imap->SetSslClientCertPfx($pfxFilename, $pfxPassword);

Specifies a TLS client certificate and private key from a PKCS #12/PFX file.

$pfxFilename is the local filesystem path of the .pfx or .p12 file, and $pfxPassword contains its password.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SshAuthenticatePk
# $sshLogin is a string
# $privateKey is a Chilkat2::SshKey
# $success is true or false
my $success = $imap->SshAuthenticatePk($sshLogin, $privateKey);

Authenticates the SSH tunnel using the username in $sshLogin and the SshKey private key in $privateKey.

Call SshOpenTunnel first. The corresponding public key must already be authorized for $sshLogin on the SSH server. After authentication, call Connect and Login for the IMAP server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SshAuthenticatePw
# $sshLogin is a string
# $sshPassword is a string
# $success is true or false
my $success = $imap->SshAuthenticatePw($sshLogin, $sshPassword);

Authenticates the SSH tunnel using the username in $sshLogin and password in $sshPassword.

Call SshOpenTunnel first. After SSH authentication succeeds, call Connect and Login; the IMAP traffic then flows through the tunnel automatically.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SshCloseTunnel
# $success is true or false
my $success = $imap->SshCloseTunnel();
Introduced in version 9.5.0.50

Closes the SSH tunnel opened by SshOpenTunnel.

Any IMAP connection using that tunnel must no longer be used after the tunnel is closed.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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SshOpenTunnel
# $sshHostname is a string
# $sshPort is an integer
# $success is true or false
my $success = $imap->SshOpenTunnel($sshHostname, $sshPort);
Introduced in version 9.5.0.50

Connects to the SSH server in $sshHostname on port $sshPort and prepares an SSH tunnel for the later IMAP connection.

Port 22 is the usual SSH port. After this succeeds, authenticate with SshAuthenticatePw or SshAuthenticatePk, then call Connect and Login for IMAP.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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StoreFlags
# $msgId is an integer
# $bUid is a boolean
# $flagNames is a string
# $value is an integer
# $success is true or false
my $success = $imap->StoreFlags($msgId, $bUid, $flagNames, $value);

Sets or clears multiple flags on one message in the selected mailbox.

If $bUid is 1, $msgId is a UID; otherwise, it is a sequence number. $flagNames is a space-separated list such as \Seen \Answered $label1. $value is 1 to set all listed flags or 0 to clear them.

The operation uses IMAP STORE or UID STORE and is not transactional. A nonexistent UID can be silently ignored and the command can still succeed. An invalid sequence number causes failure. This method changes server state only and does not update metadata in previously fetched Email objects.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Subscribe
# $mailbox is a string
# $success is true or false
my $success = $imap->Subscribe($mailbox);

Subscribes the authenticated IMAP account to the mailbox named by $mailbox.

Subscription controls which mailboxes are returned by subscribed-mailbox listing operations; it does not create the mailbox.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Unsubscribe
# $mailbox is a string
# $success is true or false
my $success = $imap->Unsubscribe($mailbox);

Removes the subscription to the mailbox named by $mailbox.

The mailbox itself and its messages are not deleted.

Mailbox names may be supplied as normal Unicode strings. Chilkat automatically handles IMAP modified UTF-7 or UTF-8 mailbox-name encoding as required by the server.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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UseCertVault
# $vault is a Chilkat2::XmlCertVault
# $success is true or false
my $success = $imap->UseCertVault($vault);
Introduced in version 9.5.0.40

Associates the XmlCertVault in $vault with this Imap object as a source of certificates and private keys for S/MIME operations.

Only one vault can be associated at a time. Calling this method again replaces the previously associated vault.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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UseSsh
# $ssh is a Chilkat2::Ssh
# $success is true or false
my $success = $imap->UseSsh($ssh);
Introduced in version 9.5.0.55

Uses an already connected and authenticated Ssh object as the transport for subsequent IMAP connections.

SSH supports multiple logical channels, so the same SSH connection may be shared by IMAP and other Chilkat objects. Call this method before Connect.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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UseSshTunnel
# $tunnel is a Chilkat2::Socket
# $success is true or false
my $success = $imap->UseSshTunnel($tunnel);
Introduced in version 9.5.0.50

Uses the existing SSH tunnel represented by the Socket in $tunnel for subsequent IMAP connections.

This allows a tunnel to be shared with other objects. Call this method before Connect.

Returns true on success, false on failure; LastErrorText says why. With RaiseError on, a failure dies with a Chilkat2::Error instead (it stringifies to the LastErrorText); the object remains usable either way.

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Events

All Chilkat methods are synchronous: the call returns when the work is done. During a long-running call, Chilkat2::Imap reports progress to handlers installed with on, which takes Event => CODE pairs (closures, so a handler can use the variables around it):

$imap->on(
    PercentDone  => sub { my ($pctDone) = @_; print "$pctDone%\n"; return 0 },   # a true return aborts
    ProgressInfo => sub { my ($name, $value) = @_; print "$name: $value\n" },
);
$imap->HeartbeatMs(250);   # the AbortCheck handler is called 4 times per second
$imap->on(Event => CODE, ...);

Installs the handlers given, replacing those installed before for the same events; undef instead of a CODE reference removes one, and $imap->on() with no arguments returns the installed handlers as a list of pairs. The event names are checked: a misspelled one croaks, and nothing is installed.

The AbortCheck handler is called at the interval set by the HeartbeatMs property (0, the default, disables it); PercentDone is called when an operation's completion percentage is known; ProgressInfo delivers named progress values. A true return from the AbortCheck or PercentDone handler aborts the running method, which then fails in the usual way (false or undef, or a Chilkat2::Error under RaiseError).

Handlers run during the method call, on the thread that called it. Inside a handler, other objects may be used, but calling a method of the same object (or its on) croaks. A die in a handler aborts the running method and is re-thrown from the method call; the object remains usable. A handler that uses $imap itself makes a reference cycle: weaken the captured copy (Scalar::Util) or remove the handler when done.

AbortCheck
# handler: sub { ...; return $abort } -- a true return aborts the method in progress
$imap->on(AbortCheck => sub { ... });

Enables a method call to be aborted by triggering the AbortCheck event at intervals defined by the HeartbeatMs property. If HeartbeatMs is set to its default value of 0, no events will occur. For instance, set HeartbeatMs to 200 to trigger 5 AbortCheck events per second.

More Information and Examples

Example

my $deadline = time() + 30;                          # give up after 30 seconds
$imap->HeartbeatMs(250);                      # call the handler 4 times per second
$imap->on(AbortCheck => sub { return time() > $deadline });
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PercentDone
# handler: sub { my ($pctDone) = @_; ...; return $abort } -- a true return aborts
$imap->on(PercentDone => sub { ... });

This provides the percentage completion for any method involving network communications or time-consuming processing, assuming the progress can be measured as a percentage. This event is triggered only when it's possible and logical to express the operation's progress as a percentage. The pctDone argument will range from 1 to 100. For methods that finish quickly, the number of PercentDone callbacks may vary, but the final callback will have pctDone equal to 100. For longer operations, callbacks will not exceed one per percentage point (e.g., 1, 2, 3, ..., 98, 99, 100).

The PercentDone callback also acts as an AbortCheck event. For fast methods where PercentDone fires, an AbortCheck event may not trigger since the PercentDone callback already provides an opportunity to abort. For longer operations, where time between PercentDone callbacks is extended, AbortCheck callbacks enable more responsive operation termination.

To abort the operation, set the abort output argument to 1. This will cause the method to terminate and return a failure status or corresponding failure value.

More Information and Examples

Example

$imap->on(PercentDone => sub {
    my ($pctDone) = @_;     # 0 to 100
    print "Percent done: $pctDone\n";
    return 0;               # return a true value to abort the method in progress
});
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ProgressInfo
# handler: sub { my ($name, $value) = @_; ... }
$imap->on(ProgressInfo => sub { ... });

This event callback provides tag name/value pairs that detail what occurs during a method call. To discover existing tag names, create code to handle the event, emit the pairs, and review them. Most tag names are self-explanatory.

Note: Some Chilkat methods don't fire any ProgressInfo events.

More Information and Examples

Example

$imap->on(ProgressInfo => sub {
    my ($name, $value) = @_;
    print "$name: $value\n";
});
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