On Wed, Nov 26, 2008 at 09:15:05AM -0800, LaGatorVII wrote:
>
> Ok here is the problem. My postfix server is the front end for 2 exchange
> servers running Symantec Mail Security with spam filtering. The most
> important thing is to cut down the spam as much as possible. We go to great
> pains to maintain a proper list of recipients so we don't have "User
> Unknown" bounce messages. The problem is that some times mail gets through
> the postfix filters, but then is rejected by the Exchange servers with the
> message "550 5.7.1 Requested action not taken: message refused" This will
> then generate a bounce to an email that, because it was spam in the first
> place does not have a proper email server. So my deferred queue eventually
> gets huge.
>
> To help stay on top of this issue, I have been manually making sure that
> both exchange servers are up and then running 'postsuper -d ALL deferred' on
> the postfix server to get rid of those bounces the server is constantly
> trying to send. I have figured out that there are about 25 per day. So if
> they stay in the queue after one week the server is constantly retrying to
> send 175 messages in addition to the normal load which is huge.
You can stop right there. 25 messages a day is insignificant. Don't
worry about it.
If you can, with reasonable effort, get the Internal servers to move
incoming junk into the Spam folder instead of refusing delivery, that's
what you should try and do. Otherwise, you are fine.
--
Viktor.
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