Diagnostic-Code: SMTP; 501 SYNTAX ERROR IN PARAMETERS OR ARGUMENTS

All, I'm using the sendmail as a SMTP server. I found some warning messages in my log files like this: --SAA28312.988798558/abc.net Content-Type: message/delivery-status Reporting-MTA: dns; abc.net Received-From-MTA: DNS; ebsn30 Arrival-Date: Wed, 2 May 2001 18:15:56 +0800 (HKT) Final-Rec

Send back all non-delivery mail

All, I would like to ask a question about sendmail. In our system, it allows users sending mail out to INTERNET. But sometimes, they are miss-typed the e-mail address of receivers. At all, How can I redirect all the non-delivery mail or messages to another e-mail address, for example, [EMAIL PR