Incorrect. His e-mail is actually from redhat-list-bounces@xxxxxxxxxx ( on behalf of him ). The return patch is "Return-Path: <redhat-list-bounces@xxxxxxxxxx>". This is how it should be. Some e-mail clients, instead of showing the real from address, will show the address of the person you specify. In this case, the mailing list software replaces the users address (dtyler@xxxxxxxxxxxxxx) with the mailing list address (redhat-list-bounces@xxxxxxxxxx) but still trys to make it appear dtyler is sending it. Outlook 2003 tells you someone else's email address sent it, but it was supposed to be from dtyler. ~~~~~~~~~~~~~~~~~~~~~~~~~~ Nathaniel Hall Intrusion Detection and Firewall Technician Ozarks Technical Community College -- Office of Computer Networking 417-799-0552 -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ed Wilts Sent: Tuesday, July 20, 2004 8:45 AM To: General Red Hat Linux discussion list Subject: Re: configuring sendmail to reject spoofed email addresses On Tue, Jul 20, 2004 at 07:25:34AM -0500, Donald Tyler wrote: > Is there anyway to configure sendmail so that if there is an email address > in the "From" section, and it does not match the "Return-Path" section, for > it to reject the email? If I would have configured my system this way, your e-mail would have been rejected. You may want to run a report of all your e-mails and compare the From address with the Return-Path address and see what you would have rejected. -- Ed Wilts, RHCE Mounds View, MN, USA mailto:ewilts@xxxxxxxxxx Member #1, Red Hat Community Ambassador Program -- 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