Name
Auto-Submitted:
Synopsis
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.
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