Auto-Submitted:

Auto-Submitted:

Why the bounce sendmail

When a message is returned because of an error or because a return receipt was requested , V8 sendmail adds an Auto-Submitted: header. This header describes the reason for the return:

 Auto-Submitted: auto-generated (  reason)  Auto-Submitted: auto-replied (  reason)    V8.12 and above  

The reason can be one of four things. It can be warning-timeout if the message has reached its Timeout.queuewarn option threshold (Timeout). It can be postmaster -warning if the failure was delivered to the postmaster as a result of a problem that the postmaster should fix, such as an MX configuration error. It can be return-receipt if the message was returned because of a Return-Receipt-To: header (Return-Receipt-To:) or a DSN NOTIFY=SUCCESS request (RFC1891). Finally, it can be failure for any other reason.

In all instances, sendmail also adds a Subject: header that contains a generic bounce message.

The Auto-Submitted: header should never be defined in the configuration file.



Sendmail
sendmail, 4th Edition
ISBN: 0596510292
EAN: 2147483647
Year: 2002
Pages: 1174

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