Hello, One of our customer having problem to receive Delivery Status Notifications (DSN) from our IMail server 7.10. They send mail from their Exchange server 5.5 thru their own linux based SMTP server with request for DSN and return receipt. They do not have problem to receive the return receipt, but they didn't get DSN message from our mail server. What they get is the delivery error message send to the postmaster look like this :-
-----Original Message----- From: Mail Delivery Subsystem [mailto:[EMAIL PROTECTED]] Sent: Saturday, June 29, 2002 9:22 AM To: [EMAIL PROTECTED] Subject: Postmaster notify: see transcript for details The original message was received at Sat, 29 Jun 2002 09:22:15 +0800 from localhost with id g5T1MFA01046 ----- The following addresses had permanent fatal errors ----- <[EMAIL PROTECTED]@mail.leaderuniversal.com> (reason: 501 5.5.2 Syntax error in address [EMAIL PROTECTED]@mail.leaderuniversal.com) ----- Transcript of session follows ----- ... while talking to mail.leaderuniversal.com.: >>> RCPT To:<[EMAIL PROTECTED]@mail.leaderuniversal.com> <<< 501 5.5.2 Syntax error in address [EMAIL PROTECTED]@mail.leaderuniversal.com 554 5.0.0 <[EMAIL PROTECTED]@mail.leaderuniversal.com>... Service unavailable The error message indicate that our IMail server send back the DSN to [EMAIL PROTECTED]@mail.leaderuniversal.com which is an invalid email address. They do not have this problem when sending mail to other mail servers. Any idea what is going wrong? Is this a IMail bug? Thank you. Best Regards, H.K. Mak Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
