I have recently upgraded a server that was running a pretty
outdated postfix version (2.2.9) to a new 2.8.5.
i'm facing some weird problems with a particular customer which has
2 MXs published. The first one (lower priority number) is rejecting our
emails lots of times (421 You are disconnected for policy reasons). And,
on the logs, i can see that for some periods of times, postfix only try
to delivers mail to his backup MX (higher priority number), which is
most all the time offline.
do newer versions of postfix have some, enabled by default,
parameters for trying to 'skip' some bad MX, for example, the one which
is rejecting our connection ? I havent enabled anything like that and
never had problem like that.
i'm sending this first message just to try to understand if there's
some parameters that i should look for. I have all the logs which i can
post in case anyone wants to see them. But, at the first time, just
knowing if postfix has some automatic skipping bad MXs feature would
give me precious hints to go on :)
thanks !
--
Atenciosamente / Sincerily,
Leonardo Rodrigues
Solutti Tecnologia
http://www.solutti.com.br
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