This is an alternative to the instructions at FilterMailWithSpamAssassinViaMilter.

The general theory is that incoming mail will be piped through ProcMail^? and processed according to the "recipes" in each user's setup.

Advantages:

• If you already use ProcMail, then adding SpamAssassin into the mix is pretty easy.

Disadvantages:

• This really doesn't play nicely with SendMailAndCyrus. Sure, you can make it work, but it may be more trouble than it's

worth.

1. Install SpamAssassin

• If you have PortInstall^? (from the sysutils/portupgrade port):

  portinstall mail/p5-Mail-SpamAssassin

• Otherwise:

  cd /usr/ports/mail/p5-Mail-SpamAssassin; make install; make clean

2. Install ProcMail

• If you have PortInstall^?:

  portinstall mail/procmail

• Otherwise:

  cd /usr/ports/mail/procmail; make install; make clean

3. Decide whether to call spamassassin directly, or run it as a daemon

3.1 Calling it directly

Pros:

• Easy to set up
• Unlikely to fail

Cons:

• Slow when processing many simultaneous requests

3.2 Running as a daemon

Pros:

• Very fast at processing multiple requests
• No startup overhead every time an email is processed

Cons:

• Use to lose email if the client (spamc) could not contact the daemon (spamd). This is probably fixed.
• A small amount of extra setup is required

To run spamd:

cd /usr/local/etc/rc.d
cp spamd.sh-dist spamd.sh
/usr/local/etc/rc.d/spamd.sh start

4. Make a default ProcMail rcfile with your favorite text editor so that it looks like this:

4.1 Calling spamassassin directly:

/root# cat /usr/local/etc/procmailrc
:0fw
| spamassassin -P

4.2 Calling the spamassassin daemon with spamc:

/root# cat /usr/local/etc/procmailrc
DROPPRIVS=yes
:0fw
| spamc

5. Configure SendMail to make ProcMail the MailDeliveryAgent^?

• If you haven't already done so, create a LocalSendmailConfiguration.
• Edit your SendMail config file. Locate the MAILER(local) line near the bottom. Just before that line, insert a new line: FEATURE(local_procmail).
• Your new configuration file should look something like this:

/root# cd /etc/mail; tail -n 3 host.domain.com.mc
FEATURE(local_procmail)
MAILER(local)
MAILER(smtp)

6. Return to FilterMailWithSpamAssassin to finish up.

-- KirkStrauser - 03 Jul 2003