I have recently noticed that some of our internal mailer scripts are causing
Dovecot-LDA to generate Mailer Delivery Subsystem messages. The following
Dovecot-LDA message is generated:
---- Message body ----
Your message was automatically rejected by Dovecot Mail Delivery Agent.
The following reason was given:
Unknown error
---- Message body ----
---- Message header ----
Return-Path: <MAILER-DAEMON>
Delivered-To: [EMAIL PROTECTED]
Received: by mymachine.xxxxx (Postfix, from userid 5000)
id 5772568300; Mon, 14 Jan 2008 18:00:56 +1100 (EST)
Message-ID: <[EMAIL PROTECTED]>
Date: Mon, 14 Jan 2008 18:00:55 +1100
From: Mail Delivery Subsystem <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
MIME-Version: 1.0
Content-Type: multipart/report; report-type=disposition-notification;
boundary="21506/mailfilter02"
Subject: Automatically rejected mail
Auto-Submitted: auto-replied (rejected)
Precedence: bulk
---- Message header ----
Initially I thought these were being caused by Delivery-Receipt requests,
however have since tested this and is not the case. I have tried to snoop
through the logs (unfortunately on a very busy mail hub) using the
Message-ID, however this doesn't seem to lead me back to the original
message - only the MDA notification. I can only ascertain that its isolated
to our scripts, as the bounces@ address is specifically used by them.
Any ideas what would cause/trigger the "Unknown error" automatic rejects ?
System config is
-Postfix 2.3.4 with MySQL backend
-Dovecot 1.0.rc26 with MySQL backend, using only deliver.
All mail deliveries are otherwise fine.
Regards
__________________________________________
Dean Manners
