James Keating wrote:
Dear Sirs/Madams,
I have been attempting to properly integrate SpamAssassin into
Postfix and have not found the solution that I am looking for.
Currently I have Spamassassin running as a daemon (spamd, version
3.1.0a-2) which uses MySQL to store Bayes, AWL, user preferences and
stats. Postfix is currently configured to connect to spamd using a
pipe setup inside master.cf. Here is the current configuration:
smtp inet n - - - 50 smtpd -o
content_filter=spamassassin
spamassassin unix - n n - 50 pipe
user=nobody argv=/usr/bin/spamc -u ${recipient} -d localhost -e
/usr/lib/sendmail -oi -f ${sender} ${recipient}
This setup appears to work properly but I am concerned about what
happens when/if spamc cannot communicate properly with spamd.
Currently if spamd is not functioning or is dead, the message is
passed through to sendmail, instead of being deferred and placed back
into the queue until spamc can connect to spamd. I have modified the
spamc flags to contain -x (which is supposed to stop the graceful fall
back), but sendmail is still passed the message and it is delivered to
the user.
I have already tried amavisd-new, spampd, qpsmtpd and a simple shell
script for connecting to spamassassin. None of these allow me to fully
use spamassassin's per user preferences and get proper fall back
when/if spamd is dead. I am hoping there is another option that I
have not tried yet. Any input would be greatly anticipated.
Thanks,
James
Is this a high volume mail server?
If it is not, you could call spamc/spamd procmail, check the email to
see if it has spamassassin results, and if it does not, run it through
spamassassin instead.... This is dangerous if your mail server is high
volume because spamassassin chews a lot more resources then spamc/spamd
Something like this should do the trick (this is off the cuff, and just
a reference, you will have to modify for your exact setup).
master.cf
spamassassin unix - n n - 50 pipe
argv=/usr/bin/procmail -m /path to procmailrc/procmailrc ${sender}
${recipient}
:0
* < 512000
{
:0fw
| spamc
:0fw
* !^X-SPAM-STATUS:
| spamassassin
}
:0
! -f "$@"
