Thanks for the fast reply! :-) My SMTP relay settings are set to 'No mail relay'.
After rebooting the machine I can do a: ------------ Telnet imailserver.caltech.edu 25 HELO MAIL FROM: <[EMAIL PROTECTED]> RCPT TO: <[EMAIL PROTECTED]> ------------ <got this script from the IPSwitch database searching for 550 unknown user.> And all is fine. Prior to the reboot I was getting the 550 unknown user error after the last line. -- Chris Yoder Smog, Just say NO! Director, Information Services, DAR Drive electric today. [EMAIL PROTECTED] http://www.its.caltech.edu/~rcy/ Peace is not the absence of war. Peace is the presence of a system for resolving conflicts before war becomes necessary. War never creates peace. - Anonymous -----Original Message----- From: Mike Callahan [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 03, 2004 6:00 AM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] '550 unknown user' errors for users who exist [fk-from] 550 is relay not allowed. Check your relay settings. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Yoder, Chris Sent: Tuesday, February 03, 2004 8:58 AM To: '[EMAIL PROTECTED]' Subject: [IMail Forum] '550 unknown user' errors for users who exist Occasionally my server starts sending back '550 unknown user' when the users exist. I believe that it returns this for all users on the system. The most expedient way to fix the problem has been to reboot. However, sending back a 550 unknown user for users that exist is *very* bad! I'd like to figure out how to stop getting this message in the first place. Any clues? -- Chris Yoder Smog, Just say NO! Director, Information Services, DAR Drive electric today. [EMAIL PROTECTED] http://www.its.caltech.edu/~rcy/ Peace is not the absence of war. Peace is the presence of a system for resolving conflicts before war becomes necessary. War never creates peace. - Anonymous To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
