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Changelog
=========

**Swiftmailer will stop being maintained at the end of November 2021.**

Please, move to Symfony Mailer at your earliest convenience.
Symfony Mailer is the next evolution of Swiftmailer.
It provides the same features with support for modern PHP code and support for third-party providers.
See https://symfony.com/doc/current/mailer.html for more information.

6.3.0 (2021-10-18)
------------------

 * Fix support for PHP 8.1

6.2.7 (2021-03-09)
------------------

 * Allow egulias/email-validator 3.1+

6.2.6 (2021-03-05)
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 * Fix Bcc support

6.2.5 (2021-01-12)
------------------

 * Don't trust properties at destruct time
 * Remove invalid PHPDocs param in EventDispatcher interface
 * Bump license year
 * Removes PHP version from README

6.2.4 (2020-12-08)
------------------

 * Prevent flushing of the bubble queue when event handler raises another event
 * Add support for PHP 8
 * Code cleanups

6.2.3 (2019-11-12)
------------------

 * no changes

6.2.2 (2019-11-12)
------------------

 * fixed compat with PHP 7.4
 * fixed error message when connecting to a stream raises an error before connect()

6.2.1 (2019-04-21)
------------------

 * reverted "deprecated Swift_CharacterStream_ArrayCharacterStream and Swift_CharacterStream_NgCharacterStream in favor of Swift_CharacterStream_CharacterStream"

6.2.0 (2019-03-10)
------------------

 * added support for symfony/polyfill-intl-dn
 * deprecated Swift_CharacterStream_ArrayCharacterStream and Swift_CharacterStream_NgCharacterStream in favor of Swift_CharacterStream_CharacterStream

6.1.3 (2018-09-11)
------------------

 * added auto-start to the SMTP transport when sending a message
 * tweaked error message when the response from an SMTP server is empty
 * fixed missing property in Swift_Mime_IdGenerator
 * exposed original body content type with Swift_Mime_SimpleMimeEntity::getBodyContentType()
 * fixed typo in variable name in Swift_AddressEncoder_IdnAddressEncoder
 * fixed return type in MessageLogger
 * fixed missing property addressEncoder in SimpleHeaderFactory class

6.1.2 (2018-07-13)
------------------

 * handled recipient errors when pipelining

6.1.1 (2018-07-04)
------------------

 * removed hard dependency on an IDN encoder

6.1.0 (2018-07-02)
------------------

 * added address encoder exceptions during send
 * added support for bubbling up authenticator error messages
 * added support for non-ASCII email addresses
 * introduced new dependencies: transport.smtphandlers and transport.authhandlers
 * deprecated Swift_Signers_OpenDKIMSigner; use Swift_Signers_DKIMSigner instead
 * added support for SMTP pipelining
 * added Swift_Transport_Esmtp_EightBitMimeHandler
 * fixed startTLS only allowed tls1.0, now allowed: tls1.0, tls1.1, tls1.2

6.0.2 (2017-09-30)
------------------

 * fixed DecoratorPlugin
 * removed usage of getmypid()

6.0.1 (2017-05-20)
------------------

 * fixed BC break that can be avoided easily

6.0.0 (2017-05-19)
------------------

 * added Swift_Transport::ping()
 * removed Swift_Mime_HeaderFactory, Swift_Mime_HeaderSet, Swift_Mime_Message, Swift_Mime_MimeEntity,
   and Swift_Mime_ParameterizedHeader interfaces
 * removed Swift_MailTransport and Swift_Transport_MailTransport
 * removed Swift_Encoding
 * removed the Swift_Transport_MailInvoker interface and Swift_Transport_SimpleMailInvoker class
 * removed the Swift_SignedMessage class
 * removed newInstance() methods everywhere
 * methods operating on Date header now use DateTimeImmutable object instead of Unix timestamp;
   Swift_Mime_Headers_DateHeader::getTimestamp()/setTimestamp() renamed to getDateTime()/setDateTime()
 * bumped minimum version to PHP 7.0
 * removed Swift_Validate and replaced by egulias/email-validator

5.4.9 (2018-01-23)
------------------

 * no changes, last version of the 5.x series

5.4.8 (2017-05-01)
------------------

 * fixed encoding inheritance in addPart()
 * fixed sorting MIME children when their types are equal

5.4.7 (2017-04-20)
------------------

 * fixed NTLMAuthenticator clobbering bcmath scale

5.4.6 (2017-02-13)
------------------

 * removed exceptions thrown in destructors as they lead to fatal errors
 * switched to use sha256 by default in DKIM as per the RFC
 * fixed an 'Undefined variable: pipes' PHP notice
 * fixed long To headers when using the mail transport
 * fixed NTLMAuthenticator when no domain is passed with the username
 * prevented fatal error during unserialization of a message
 * fixed a PHP warning when sending a message that has a length of a multiple of 8192

5.4.5 (2016-12-29)
------------------

 * SECURITY FIX:  fixed CVE-2016-10074 by disallowing potentially unsafe shell characters

   Prior to 5.4.5, the mail transport (Swift_Transport_MailTransport) was vulnerable to passing
   arbitrary shell arguments if the "From", "ReturnPath" or "Sender" header came
   from a non-trusted source, potentially allowing Remote Code Execution
 * deprecated the mail transport

5.4.4 (2016-11-23)
------------------

 * reverted escaping command-line args to mail (PHP mail() function already does it)

5.4.3 (2016-07-08)
------------------

 * fixed SimpleHeaderSet::has()/get() when the 0 index is removed
 * removed the need to have mcrypt installed
 * fixed broken MIME header encoding with quotes/colons and non-ascii chars
 * allowed mail transport send for messages without To header
 * fixed PHP 7 support

5.4.2 (2016-05-01)
------------------

 * fixed support for IPv6 sockets
 * added auto-retry when sending messages from the memory spool
 * fixed consecutive read calls in Swift_ByteStream_FileByteStream
 * added support for iso-8859-15 encoding
 * fixed PHP mail extra params on missing reversePath
 * added methods to set custom stream context options
 * fixed charset changes in QpContentEncoderProxy
 * added return-path header to the ignoredHeaders list of DKIMSigner
 * fixed crlf for subject using mail
 * fixed add soft line break only when necessary
 * fixed escaping command-line args to mail

5.4.1 (2015-06-06)
------------------

 * made Swiftmailer exceptions confirm to PHP base exception constructor signature
 * fixed MAIL FROM & RCPT TO headers to be RFC compliant

5.4.0 (2015-03-14)
------------------

 * added the possibility to add extra certs to PKCS#7 signature
 * fix base64 encoding with streams
 * added a new RESULT_SPOOLED status for SpoolTransport
 * fixed getBody() on attachments when called more than once
 * removed dots from generated filenames in filespool

5.3.1 (2014-12-05)
------------------

 * fixed cloning of messages with attachments

5.3.0 (2014-10-04)
------------------

 * fixed cloning when using signers
 * reverted removal of Swift_Encoding
 * drop support for PHP 5.2.x

5.2.2 (2014-09-20)
------------------

 * fixed Japanese support
 * fixed the memory spool when the message changes when in the pool
 * added support for cloning messages
 * fixed PHP warning in the redirect plugin
 * changed the way to and cc-ed email are sent to only use one transaction

5.2.1 (2014-06-13)
------------------

 * SECURITY FIX: fixed CLI escaping when using sendmail as a transport

   Prior to 5.2.1, the sendmail transport (Swift_Transport_SendmailTransport)
   was vulnerable to an arbitrary shell execution if the "From" header came
   from a non-trusted source and no "Return-Path" is configured.

 * fixed parameter in DKIMSigner
 * fixed compatibility with PHP < 5.4

5.2.0 (2014-05-08)
------------------

 * fixed Swift_ByteStream_FileByteStream::read() to match to the specification
 * fixed from-charset and to-charset arguments in mbstring_convert_encoding() usages
 * fixed infinite loop in StreamBuffer
 * fixed NullTransport to return the number of ignored emails instead of 0
 * Use phpunit and mockery for unit testing (realityking)

5.1.0 (2014-03-18)
------------------

 * fixed data writing to stream when sending large messages
 * added support for libopendkim (https://github.com/xdecock/php-opendkim)
 * merged SignedMessage and Message
 * added Gmail XOAuth2 authentication
 * updated the list of known mime types
 * added NTLM authentication

5.0.3 (2013-12-03)
------------------

 * fixed double-dot bug
 * fixed DKIM signer

5.0.2 (2013-08-30)
------------------

 * handled correct exception type while reading IoBuffer output

5.0.1 (2013-06-17)
------------------

 * changed the spool to only start the transport when a mail has to be sent
 * fixed compatibility with PHP 5.2
 * fixed LICENSE file

5.0.0 (2013-04-30)
------------------

 * changed the license from LGPL to MIT

4.3.1 (2013-04-11)
------------------

 * removed usage of the native QP encoder when the charset is not UTF-8
 * fixed usage of uniqid to avoid collisions
 * made a performance improvement when tokenizing large headers
 * fixed usage of the PHP native QP encoder on PHP 5.4.7+

4.3.0 (2013-01-08)
------------------

 * made the temporary directory configurable via the TMPDIR env variable
 * added S/MIME signer and encryption support

4.2.2 (2012-10-25)
------------------

 * added the possibility to throttle messages per second in ThrottlerPlugin (mostly for Amazon SES)
 * switched mime.qpcontentencoder to automatically use the PHP native encoder on PHP 5.4.7+
 * allowed specifying a whitelist with regular expressions in RedirectingPlugin

4.2.1 (2012-07-13)
------------------

 * changed the coding standards to PSR-1/2
 * fixed issue with autoloading
 * added NativeQpContentEncoder to enhance performance (for PHP 5.3+)

4.2.0 (2012-06-29)
------------------

 * added documentation about how to use the Japanese support introduced in 4.1.8
 * added a way to override the default configuration in a lazy way
 * changed the PEAR init script to lazy-load the initialization
 * fixed a bug when calling Swift_Preferences before anything else (regression introduced in 4.1.8)

4.1.8 (2012-06-17)
------------------

 * added Japanese iso-2022-jp support
 * changed the init script to lazy-load the initialization
 * fixed docblocks (@id) which caused some problems with libraries parsing the dobclocks
 * fixed Swift_Mime_Headers_IdentificationHeader::setId() when passed an array of ids
 * fixed encoding of email addresses in headers
 * added replacements setter to the Decorator plugin

4.1.7 (2012-04-26)
------------------

 * fixed QpEncoder safeMapShareId property

4.1.6 (2012-03-23)
------------------

 * reduced the size of serialized Messages

4.1.5 (2012-01-04)
------------------

 * enforced Swift_Spool::queueMessage() to return a Boolean
 * made an optimization to the memory spool: start the transport only when required
 * prevented stream_socket_client() from generating an error and throw a Swift_TransportException instead
 * fixed a PHP warning when calling to mail() when safe_mode is off
 * many doc tweaks

4.1.4 (2011-12-16)
------------------

 * added a memory spool (Swift_MemorySpool)
 * fixed too many opened files when sending emails with attachments

4.1.3 (2011-10-27)
------------------

 * added STARTTLS support
 * added missing @return tags on fluent methods
 * added a MessageLogger plugin that logs all sent messages
 * added composer.json

4.1.2 (2011-09-13)
------------------

 * fixed wrong detection of magic_quotes_runtime
 * fixed fatal errors when no To or Subject header has been set
 * fixed charset on parameter header continuations
 * added documentation about how to install Swiftmailer from the PEAR channel
 * fixed various typos and markup problem in the documentation
 * fixed warning when cache directory does not exist
 * fixed "slashes are escaped" bug
 * changed require_once() to require() in autoload

4.1.1 (2011-07-04)
------------------

 * added missing file in PEAR package

4.1.0 (2011-06-30)
------------------

 * documentation has been converted to ReST

4.1.0 RC1 (2011-06-17)
----------------------

New features:

 * changed the Decorator Plugin to allow replacements in all headers
 * added Swift_Mime_Grammar and Swift_Validate to validate an email address
 * modified the autoloader to lazy-initialize Swiftmailer
 * removed Swift_Mailer::batchSend()
 * added NullTransport
 * added new plugins: RedirectingPlugin and ImpersonatePlugin
 * added a way to send messages asynchronously (Spool)