Hi, I have a local mail server set up to email users when their particular task on a larger system has been completed. For users within our domain, it works fine, however when users outside of our domain are emailed, the email is routed through another mail server within our domain. I always get messages such as the following back. I'm not an expect with mail systems (and I honestly haven't done a lot of research into it) so I'm guessing that my mail server is not configured correctly. I need to reconfigure it to connect to the appropriate destination mail server (if possible) to deliver mail. Can anyone provide any guidance? Thanks, Ryan -----Original Message----- From: Mail Delivery Subsystem [mailto:MAILER-DAEMON@xxxxxxxxxxxxxxxx] Sent: Tuesday, October 31, 2006 12:20 PM To: apache@xxxxxxxxxxxxxxxx Subject: Returned mail: see transcript for details The original message was received at Tue, 31 Oct 2006 12:20:09 -0500 from localhost.localdomain [127.0.0.1] ----- The following addresses had permanent fatal errors ----- <someuser@xxxxxxxxxxxxx> (reason: 550 Cannot relay. Mailbox not available someuser@xxxxxxxxxxxxx) ----- Transcript of session follows ----- ... while talking to mymailserver.mydomain.edu.: >>> RCPT To:<someuser@xxxxxxxxxxxxx> <<< 550 Cannot relay. Mailbox not available someuser@xxxxxxxxxxxxx 550 5.1.1 <someuser@xxxxxxxxxxxxx>... User unknown -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
