On Mon, Aug 19, 2013 at 01:28:45PM +0200, Leo Baltus wrote:
> We are upgrading our postfix instances from 2.9.6 to 2.10.1.
Have you considered reading the release notes (for Postfix 2.10)?
Major changes - load-balancer support
-------------------------------------
[Incompat 20120625] The postscreen(8)-to-smtpd(8) protocol has
changed. To avoid "cannot receive connection attributes" warnings
and dropped connections, execute the command "postfix reload". No
mail will be lost as long as the remote SMTP client tries again
later.
The reload should be performed immediately after installing the new
binaries. If you prefer you can stop Postfix before the upgrade, and
restart after (that's what I would do).
--
Viktor.
