Start by making sure your not a open relay. Then check your maillog for outside connections sending email outside of your domain (relaying). It would also help if we knew what MTA you have running. -----Original Message----- From: Billy Davis [mailto:bdavis@xxxxxxxxxxxx] Sent: Friday, December 05, 2003 10:22 AM To: redhat-list@xxxxxxxxxx Subject: How to detect spammers? We have reason to believe that someone on the Internet is using our RH9 Linux server to distribute spam. Are there any log files that we can check to verify this? How can we prevent it? Thanks, Bdavis -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list