======= Queue Management =======

Reschedule messages for immediate redelivery
*run qmail-tcpok to reset tcp timeouts to 0 (use qmail-tcpto to view timeout values)
*kill -ALRM <pid of qmail-send>

**qmhandle** - perl based queue viewer.  Also allows you to read/delete emails in active queue. Use with -c flag for color.  http://www.io.com/~mick/soft/qmhandle.html

======= Relaying =======
  *edit /etc/tcp.smtp and insert hosts, netblocks from which to allow relaying
  *example line: 192.168.10.:allow,RELAYCLIENT=""
  *tcprules tcp.smtp.cdb tcp.smtp.temp < tcp.smtp

======= Spam Control =======
  *http://slashdot.org/article.pl?sid=02/08/19/122256&mode=thread&tid=167
  *Bayesian spam theory - http://www.paulgraham.com/spam.html
  *Bayesian qmail spam filter -http://www.garyarnold.com/projects.php#bayespam
  *procmail rule for geo spam control:

<code>
 ####
 #
 #  Procmail rules for spam control.
 #  Greg Retkowski <URL:http://www.rage.net/~greg/>
 #
 ####
 FROM=`/usr/bin/formail -x From:`
 FHOP=`formail -c -x Received: | tail -1 | \
        sed -e \ 's/.*\[\([^0-9]*\)\([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\)\(.*\)/\2/'`
 THOP=`formail -c -x Received: | head -1 | tr '\012' ' ' | \
        sed -e 's/.*by \([a-zA-Z0-9\.]\{1,\}\).*/\1/'`
 LHOP=`formail -c -x Received: | head -1 | \
        sed -e \ 's/.*\[\([^0-9]*\)\([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\)\(.*\)/\2/'`
 GIP=/home/greg1/bin/geoiplookup

 # blacklist domains in my .spammers file
 :0 fw
  * ? cat /home/greg1/.spammers /home/greg1/.spammers.static | grep -i ^`echo $FROM |sed -e 's/.*@//'` >/dev/null
 | formail -A "X-SPAM-RULE: SENDER"

 # blacklist relays in .openrelays
 :0 fw
  * !? /home/greg1/rblcheck -q -s relays.osirusoft.com $LHOP
 | formail -A "X-SPAM-RULE: RBL"

 # Add a georouting header to every mail
 :0 fw
 | formail -A "X-INTL-ROUTE: `$GIP $FHOP` `$GIP $LHOP` `$GIP $THOP`"

 # Mark messages with bad georouting as spam
 :0 fw
  * ? test `$GIP $FHOP` != `$GIP $LHOP` && test `$GIP $LHOP` != `$GIP $THOP`
 | formail -A "X-SPAM-RULE: GEOROUTE"

 # Mails appearing with a UIDL before being in pop3 are bogus
 :0 fw
  * ^X-UIDL:.*
 | formail -A "X-SPAM-RULE: UIDL"
</code>
----
computer