[Mimedefang] Mimedefang 2.36 and how to drop a blocked attachment message - action_bounce?
jscully at isupportisp.com
Sun Sep 28 19:32:00 EDT 2003
Although it violates the "basic tenets" of mail processing to silently
discard a message...that is really the best thing to do. Action_bounce
is going to bounce it back to the "sender" which in the case of a virus
is only the sender maybe 10% of the time. The others will either go
nowhere or pile up in some poor guy's mailbox.
We just use action_discard to silently drop the message. We used to
also send a message to the recipient telling him that a virus laden
message had been blocked, but sobig put an end to that. Who wants 400
"you were just protected from a virus" messages?
You will find this list divided between those who say mail is never to
be discarded, and those who decided that the spammers no longer make
that philosophy practical.
From: mimedefang-admin at lists.roaringpenguin.com
[mailto:mimedefang-admin at lists.roaringpenguin.com] On Behalf Of Schuyler
Sent: Sunday, September 28, 2003 2:11 PM
To: mimedefang at lists.roaringpenguin.com
Subject: [Mimedefang] Mimedefang 2.36 and how to drop a blocked
attachment message - action_bounce?
I've seen a few messages somewhat relating to this in the archives but
nothing with an authoritative answer. Apologies if you feel it's a
After a few iterations of perl upgrades, many CPAN module installs,
sendmail recopiles and other standard challenges, I got mimedefang
working. Celebrations aside, I'm trying to see how difficult it would
to just delete the e-mail, or bounce it with an error? The problem I've
had is I have mailman lists where the e-mail address for the list has to
be posted on the website so every e-mail bomb ever grabs it and I get
hundreds of blaster, sobig, etc infected messages per day sometimes.
sure you all have much exaggerated versions of this. ;)
Granted, mimedefang now removes the harmful part of them but I sure
rather not have to add a header line, change my .procmailrc (and
to filter those, etc. It'd be better for them to just go away.
It seems that using action_bounce for - well - everything but spam -
handle this nicely at the SMTP level and I just wanted to verify that
doesn't have any unwanted "challenges". Where should this change take
place in the filter file?
Thanks in advance.
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