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Postfix Documentation
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Supported Platforms

Postfix version 2.2 supports IPv4 and IPv6 on the following platforms:

  • AIX 5.1+
  • Darwin 7.3+
  • FreeBSD 4+
  • Linux 2.4+
  • NetBSD 1.5+
  • OpenBSD 2+
  • Solaris 8+
  • Tru64Unix V5.1+

On other platforms Postfix will simply use IPv4 as it has always done.

See below for tips how to port Postfix IPv6 support to other environments.

Postfix Documentation
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