One of my users is getting mail bounced back, that he did not send. I was determing how to prevent this. All the mail my users sends is only sent though 1 mail server. On all outgoing mail, add an X-Header that indicates it was actually sent though your mail server. On mail bouncing back, that appears to be sent from one of your users, look for the X-Header. If it is not their, then reject the mail.
Has anyone else encountered this particular problem or a solution for this sort of problem? -- Luke Computer Science System Administrator Security Administrator,College of Engineering Montana State University-Bozeman,Montana _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang

