Is there any kind of a program out there to determine who a spammer on a server is? Some kind of sniffer or something?

what you could do is this:
make a shell script that looks like this:


#!/bin/sh
###################
# (C) 2002 hypernatic.net
###################
mailq >spamlist.txt
./spammail.pl
rm -f spamlist.txt


then make the perl script (spammail.pl):

#!/usr/bin/perl
###################
# (C) 2002 hypernatic.net
###################

open (mque,"./spamlist.txt");
@mque= <mque>;
close (mque);

# Open The Mail Program
open(MAIL,"|/usr/sbin/sendmail -t");

print MAIL "To: you\@yourhost.com\n";
print MAIL "From: root\@localhost (SpamCheck Daemon)\n";
print MAIL "Subject: SPAM REPORT\n\n";
print MAIL "@mque";

close (MAIL);


Please note, this has NOT been tested... Just my 2 cents

This runs a mailq (que for outgoingmail display) and it mails it to you... when there is a lot of crap in the mailq report you might want to check for a spammer...

Run this script as a cron so you get an hourly, daily or whatever report...