I think you've stumbled onto why people are using "exception" blocks in
their maildrop rules.

m/

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Joe
Emenaker
Sent: Tuesday, December 02, 2003 1:35 AM
To: [EMAIL PROTECTED]
Subject: [courier-users] Maildrop question: Any options to make
"xfilter" work better?


I just found out that I've been losing a lot of my mail.

I've been using spamassassin and amavis-ng (calling ClamAV) via the
xfilter command in maildrop to manage incoming mail.

The problem is... it seems that my copy of spamassassin started freaking
out and it was dropping an assortment of my messages. I guess xfilter
was calling it and it was either crashing entirely or it was returning
(via xfilter's STDIN) nothing at all.

Whatever the exact problem was... maildrop was discarding the message
entirely. I wouldn't even get blank (ie, no body) messages in my inbox.
They'd just never get delivered.

Now, the tragedy here is that, with SpamAssassin (the way I've got it
configured, anyway), the size of the message should never *decrease*
after processing. If it does, something went very wrong and maildrop
should just roll back to the copy of the message that it had before the
xfilter call. Is there a way to get xfilter to disallow decreases in
message size?

In other cases, like with my virus filtering software, the size of the
message doesn't decrease unless it actually *finds* a virus, in which
case it probably returns a specific return code. So, it would be nice if
I could not just prevent decreases in message size, but to prevent them
unless a specific return code comes back from the called filter. Any
hope here?

- Joe




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