Postfix version 2.6.0 available

Discussion in 'Postfix' started by popowich, May 12, 2009.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:
    Postfix stable release 2.6.0 is available. After Postfix was declared
    "complete" with version 2.3, the focus has moved towards improving
    the code/documentation, and updating it for changing environments.

    - Multi-instance support introduces a new postmulti(1) command to
    create/add/remove/etc. additional Postfix instances. The familiar
    "postfix start" etc. commands now automatically start multiple
    Postfix instances. The good news: nothing changes when you use
    only one Postfix instance. See MULTI_INSTANCE_README for details.

    - Multi-instance support required that some files be moved from
    the non-shared $config_directory to the shared $daemon_directory.
    The affected files are postfix-script, postfix-files and post-install.

    - TLS (SSL) support was updated for elliptic curve encryption. This
    requires OpenSSL version 0.9.9 or later. The SMTP client no longer
    uses the SSLv2 protocol by default. See TLS_README for details.

    - The Milter client now supports all Sendmail 8.14 Milter requests,
    including requests for rejected recipient addresses, and requests
    to replace the envelope sender address. See MILTER_README for

    - Postfix no longer adds (Resent-) From:, Date:, Message-ID: or To:
    headers to email messages with "remote" origins (these are origins
    that don't match $local_header_rewrite_clients). Adding such
    headers breaks DKIM signatures that explicitly cover non-present
    headers. For compatibility with existing logfile processing
    software, Postfix will log ``message-id=<>'' for email messages
    that have no Message-Id header.

    - Stress-adaptive behavior is now enabled by default. This allows
    the Postfix SMTP server to temporarily reduce time limits and
    error-count limits under conditions of overload, such as a malware
    attack or backscatter flood. See STRESS_README for details.

    No functionality has been removed, but it is a good idea to review
    the RELEASE_NOTES file for the usual minor incompatibilities or

    You can find Postfix version 2.6.0 at the mirrors listed at
    The Postfix Home Page

    The same code is also available as Postfix snapshot 2.7-20090511.
    Updated versions of Postfix version 2.5, 2.4 and perhaps 2.3 will
    be released with the same fixes that were already included with
    Postfix versions 2.6 and 2.7.

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