The Amavis version I use is the one that Jim Gifford provided to the list as it had workarounds for Courier.

I call everything from maildrop. In the Amavis dist. I refer to above there is a README.courier file that will detail everything you need to know.

Maildrop calls Amavis (and Clam AV) first, Then SpamAssasin, and then Anomy.

The setup looks for specific headers after each process, and delivers the mail if it was successful in detecting Viruses, Spam, or Attachments.

For example:

Amavis is called

# Import Variables # import HOME import SENDER import RECIPIENT

# Virus Scan

if ($SENDER ne "") { FROM=$SENDER } else { FROM="unknown" }

xfilter "/usr/sbin/amavis $FROM $RECIPIENT"

if (/^Subject:.*VIRUS IN*/) { exception { to "Maildir/.Virus" } }

If a virus was detected the mail goes to Maildir/.Virus and no further checking is done for that piece of mail.

If no viruses are found then Spam Assasin is called next;

# Spam Assassin

xfilter "/usr/local/bin/spamassassin -x"

if (/^X-Spam-Flag: YES/) { to "Maildir/.Spam" }

If Spam is detected no further checks are done and mail is delivered to Maildir/.Spam

if no Spam is detected than Anomy is called,

# Anomy Sanitizer

ANOMY=/usr/local/anomy/ xfilter "/usr/local/bin/sanitizer.pl /var/xxxxxxx/xxxxx/xxxxx/sanitizer2.cfg"

And mail is then delivered to Maildir (if it made it this far).

Hope this helps, I bet there are many different ways of doing this, and mine might not be the most efficient.

Gerardo

P.S. If you use Clam AV dont forget to setup freshclam for automatic updates to the virus.db (as far as I can tell they normally update twice daily)

Rodrigo Severo writes: