For anyone who’s had to cleanup some mail problems with Postfix configuration (or more often with other things, like anti-spam, tied in but not part of postfix), it may be common enough that a large spool of mail gets queued up and needs to be pushed out. The easy way to do this is to do either “postfix flush” or “postqueue -f” which basically force Postfix to re-process pending messages (actually “deferred” usually) and send them out.
However, if either the queue is huge, or you don’t really know if you have your problems resolved and want to try a few messages before unleashing the masses, I found it was not clear how this can be done. There is a straight-forward way to do this which is to put everything on hold using “postsuper -h ALL deferred”, and then un-hold whichever messages you do want processed with “postsuper -H “.
Tres handy
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On previous mail server setups, I’ve tried to pass all mail coming into the server through SpamAssassin (The Fight Against Spam) and it’s a bit of a struggle to get it working sometimes so I’ve had nothing setup for a while other than some SMTP restrictions and a couple of the RBLs. So since SpamAssassin is generally geared to being run / configured per-user, I figured, what the hell, I’ll try that. And it is way easier. All I did was plop this in my .procmailrc:
# SpamAssassin
:0fw: spamassassin.lock
| /usr/bin/spamassassin
:0:
* ^X-Spam-Status: Yes
Junk
So now, SA happily tags all my possibly spammy mail and then for actual spam, it dumps it in the Junk folder and it actually strips the content replacing it with all the reasons why the message was identified as spam (the original message is attached).
So far so good!
- Arch
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