Postfix stable release 3.4.3

[An on-line version of this announcement will be available at]

Postfix stable release 3.4.3 is available.

One of the Postfix 3.4.2 changes (LINUX5) was missing. For your convenience, the remainder of this text repeats the content of the Postfix 3.4.2 announcement.

The plan is to maintain zero code difference between the stable release and the development release, until there have been no bug-of-the-week patches for much more than several weeks.

You can find the updated Postfix source code at the mirrors listed at