MailScanner suddenly stopped working and screwed up everything

Scott Silva ssilva at
Mon Feb 9 21:50:27 GMT 2009

on 2-6-2009 5:28 AM jan gestre spake the following:
> Hi Guys,
> I've several mail servers running (postfix + dovecot + mysql +
> mailscanner) that has been up for a long time now and suddenly it
> stopped working one by one. It began by users experiencing bouncing
> emails even though the user exist then it became worst, all emails is
> now being tagged as spam even those from yahoo and gmail. I suspect
> MailScanner might be causing the issue so I turned it off but the
> server keep on rejecting emails because of postfix's
> smtpd_client_restrictions rule that blocks emails if it came from an
> ip address listed on, but after disabling that parameter
> emails from sites like yahoo and gmail still gets blocked according to
> postfix it's listed in sbl-xbl list, I know for a fact that this
> shouldn't suppose to happen but it did. Anybody ever experienced this?
> What's the workaround, I'm stumped, I have no idea why it suddenly got
> screwed.
> Jan
On the problem server try this;


If you get a timeout, either you are blacklisted, or your DNS resolution has

MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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