Step 1: Install MATT::Bundle.

Download: http://www.tnpi.biz/computing/perl/MATT-Bundle/MATT-Bundle.tar.gz

Step 2: Install Mail::Toaster

http://www.tnpi.biz/computing/mail/toaster/Mail-Toaster.tar.gz

        perl Makefile.PL
        make test
        make install
        make conf  (or newconf)

Step 3: Edit or update toaster-watcher.conf

        vi /usr/local/etc/toaster-watcher.conf

Step 4: Test

        cd /service/smtp 
        cp run run.bak
        /usr/local/sbin/toaster-watcher.pl
        diff run run.bak

Step 5: Add to cron

        crontab -e -u root 
        */5 * * * * /usr/local/sbin/toaster-watcher.pl