Mail filtering using procmail are there other alternatives?

[Pat Lashley]

--On Friday, August 29, 2003 20:35:53 -0500 Adi Linden <adil at adis.on.ca> 
wrote:

>> Cyrus supports server-side filtering via Sieve.  This includes filing
>> messages into folders, vacation responses, and more.  Read the docs for
>> details.  There are a handful of Web interfaces (eg, Websieve) for
>> managing scripts.
>
> Ok, but what about spam detection tools that rely on procmail recipes? I
> read the sample chapter from an O'Reilly book that's online and describes
> how to integrate sendmail, procmail and cyrus-imap:
>
>     http://www.oreilly.com/catalog/mimap/chapter/ch09.html
>
> Does this work fine in cases where cyrus-imap fails to deliver the
> message  due to over quota or non existant mailboxes?

Consider replacing Sendmail with Exim (http://www.exim.org/) and
the ExiScan-ACL patch (http://www.duncanthrax.net/exiscan-acl/).
Add SpamAssassin (http://spamassassin.org/) and possibly clamav
(http://clamav.elektrapro.com/stable/)

The big advantage of Exim with ExiScan-ACL is that it can reject
spam messages while the SMTP connection is still open; so you never
try to bounce messages to probably bogus or forged addresses.

And Exim works quite well with Cyrus.

There are FAQs and How-To's on the various sites mentioned above
that should make it easy to get everything set up and working
together.  (If you happen to be running FreeBSD, you can install
all of them through the ports.  The Exim port uses ExiScan-ACL
by default.)



-Pat