From: Richard WItt
Sent: Wednesday, February 04, 2004 11:25 AM
[...]
Right now the connection limit is stayng full from people trying to
send the virus inbound, which takes up connections, and also bounces
being sent back to spoofed addresses at our domain. What i would like
to do is somehow drop all these emails if detected, hoping to make
sendmail process a bit quicker. Does anyone think this would work?
I'd recommend taking a look at MIMEdefang:
http://www.mimedefang.org/
(from the FAQ)
MIMEDefang is a framework for filtering e-mail. It uses Sendmail's "Milter"
API, some C glue code, and some Perl code to let you write high-performance
mail filters in Perl.
People use MIMEDefang to:
Block viruses
Block or tag spam
Remove HTML mail parts
Add boilerplate disclaimers to outgoing mail
Remove or alter attachments
Replace attachments with URL's
Implement sophisticated access controls.
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