How do I store a copy of incoming & outgoing mail in an archive?

You can keep a copy of all incoming/outgoing messages in a separate directory for each day.

1) In your qmail source find extra.h and edit it. These 2 lines:

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#define QUEUE_EXTRA ""

#define QUEUE_EXTRALEN 0

- ----------------------------

should become:

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#define QUEUE_EXTRA "Tlog\0"

#define QUEUE_EXTRALEN 5

- ----------------------------

2) Create the /var/qmail/alias/.qmail-log file that will specify what is to be done with those copies of all messages. In my case /var/qmail/alias/.qmail-log contains a Maildir which is daily changed via a cron job and a small shell script. For example it now contains:

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/home/qmail/040622_Tue.log/

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If you don't want to do per day copying just use a fixed Maildir location here, say /var/log/qmail/Maildir/ do a 'chown -R alias:qmail /var/log/qmail/Maildir/' and 'chmod -R go-rwx /var/log/qmail/Maildir/'. Keep in mind that this Maildir might grow huge in very little time (depending on the volume of messages that go through your qmail) - that is why I am doing a per day splitting.

3) If you specified a fixed Maildir above, now is the time to recompile qmail from source. In this case you don't need to proceed further - you are done. If you will go for the per day splitting skip this step.

4) Create a log rotation script. In my case this is /home/qmail/msg-log.sh and has these contents:

#!/bin/sh

MNUM="`/bin/date \"+%g%m%d_%a\"`"

NUMFILE="$MNUM.log"

cd /home/qmail

if ! test -d $NUMFILE; then

/bin/mkdir $NUMFILE

/bin/mkdir $NUMFILE/cur

/bin/mkdir $NUMFILE/tmp

/bin/mkdir $NUMFILE/new

fi

/sbin/chown -R alias:qmail $NUMFILE

/bin/chmod -R go-rwx $NUMFILE

/bin/echo "# Keep a copy of all incoming and outgoing messages" >

/var/qmail/alias/.qmail-log

/bin/echo "# in the /home/qmail/$NUMFILE/ folder:" >>

/var/qmail/alias/.qmail-log

/bin/echo /home/qmail/$NUMFILE/ >> /var/qmail/alias/.qmail-log

exit 0

Now execute this script to create your today's Maildir: 'sh /home/qmail/msg-log.sh' and verify proper operation of the script (you should do a 'cat /var/qmail/alias/.qmail-log' to see what was written there) 5) Add a relevant log rotate entry in root's crontab (all in one line):

1 0 * * * /bin/sh /home/qmail/msg-log.sh 2>&1

6) Recompile qmail from source. You are done. Each days incoming/outgoing messages will be stored in /home/qmail/xxxxxx_zzz.log/new/