Postfix v.3.2.0 is available

Posted on Posted in Postfix

Description: Postfix stable release 3.2.0 is available. This release ends support for legacy release Postfix 2.10.


  • Elliptic curve negotiation with OpenSSL ≥ 1.0.2.

    • changes the default smtpd_tls_eecdh_grade setting to "auto"
    • new parameter tls_eecdh_auto_curves with the names of curves that may be negotiated.
  • Stored-procedure support for MySQL databases.
  • Cidr: table support for if/endif and negation (by prepending ! to a pattern), just like regexp: and pcre: tables.
  • The postmap command and the inline: and texthash: maps now support spaces in left-hand field of lookup table source text.
    Use double quotes (") around a left-hand field that contains spaces, and use backslash (\) to protect quotes in a left-hand field.
  • Support for per-client Milter configuration (smtpd_milter_maps) that overrides the smtpd_milters setting, and that has the same syntax.
    A lookup result of "DISABLE" turns off Milter support for that client.
  • The local SMTP server IP address and port are available in the policy delegation protocol (attribute names: server_address, server_port), in the Milter protocol (macro names: {daemon_addr},{daemon_port}), and in the XCLIENT protocol (attribute names: DESTADDR, DESTPORT).
  • For safety reasons, the Postfix sendmail -C option must specify an authorized directory:
    the default configuration directory, a directory that is listed in the default file with alternate_config_directories or multi_instance_directories, otherwise the command must be invoked with root privileges.
    This mitigates a recurring "jail break" problem with the PHP mail() function.
  • "PASS" and "STRIP" actions in header/body_checks. "STRIP" is similar to "IGNORE" but also logs the action, and "PASS" disables header, body, and Milter inspection for the remainder of the message content. Contributed by Hobbit.
  • The script by Viktor Dukhovni for grouping Postfix logfile records into "sessions" based on queue ID and process ID information, in the auxiliary/collate directory of the Postfix source tree.

  • Disabled/removed
  • :

    • SMTPUTF8 support: Postfix 3.2 disables the 'transitional' compatibility between the IDNA2003 and IDNA2008 standards for internationalized domain names (domain names beyond the limits of US-ASCII). This makes Postfix behavior consistent with contemporary web browsers. See RELEASE_NOTES for more.
    • tentative features that were implemented before the DANE spec was finalized: support for certificate usage PKIX-EE(1), the ability to disable digest agility, and the ability to disable support for "TLSA 2 [01] [12]" records that specify the digest of a trust anchor. See RELEASE_NOTES for more.

Recommended action: Download and install the latest version from source.

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