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Postfix stable release 2.8.7

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  • Wietse Venema
    [An on-line version of this announcement will be available at http://www.postfix.org/announcements/postfix-2.8.7.html] Postfix stable release 2.8.7 is
    Message 1 of 1 , Nov 7, 2011
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      [An on-line version of this announcement will be available at

      Postfix stable release 2.8.7 is available. This contains a workaround
      for a problem that is fixed in Postfix 2.9.

      * The postscreen daemon, which is not enabled by default, sent
      non-compliant SMTP responses (220- followed by 421) when it
      could not give a connection to a real smtpd process. These
      responses caused some remote SMTP clients to return mail as

      The workaround is to hang up after sending 220- without sending
      the 421 "sorry" reply; this is harmless.

      The complete fix involves too much change for a stable release:
      send the 220 greeting, wait for the EHLO command, then send
      the 421 "sorry" reply and hang up.

      You can find the updated Postfix source code at the mirrors listed
      at http://www.postfix.org/.

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