Hi Dirk,
> a customer on a 5210R server has switched to postfix and has now
> determined that NDR mails come back to the wrong address, not to the
> e-mail address specified as "From" address in his mail program, but to
> the address entered in the virtusertable, i.e. accountname@host.domain
>
> I am concerned that this could cause problems with the delivery of NDR news.
I had tested this before release and I just tested it again.
Let me give an exact example:
Vsite www.kinofreak.com, user "kino". Email to nonexisting account on
another server (a...@solarspeed.net) results in the following complete
NDR message - here shown with all headers:
----------------------------------------------------------------
Return-Path: <>
X-Original-To: k...@www.kinofreak.com
Delivered-To: k...@jarvis.smd.net
Received: by jarvis.smd.net (Postfix)
id 0F8FC8380B; Thu, 18 Jun 2020 07:42:10 -0500 (-05)
Date: Thu, 18 Jun 2020 07:42:10 -0500 (-05)
From: mailer-dae...@jarvis.smd.net (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: k...@www.kinofreak.com
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="1847783583.1592484130/jarvis.smd.net"
Content-Transfer-Encoding: 8bit
Message-Id: <20200618124210.0f8fc83...@jarvis.smd.net>
This is a MIME-encapsulated message.
--1847783583.1592484130/jarvis.smd.net
Content-Description: Notification
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
This is the mail system at host jarvis.smd.net.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<a...@solarspeed.net>: host mail.solarspeed.net[208.77.221.199] said:
553 5.3.0
<a...@solarspeed.net>... No such user here (in reply to RCPT TO command)
--1847783583.1592484130/jarvis.smd.net
Content-Description: Delivery report
Content-Type: message/delivery-status
Reporting-MTA: dns; jarvis.smd.net
X-Postfix-Queue-ID: 1847783583
X-Postfix-Sender: rfc822; k...@www.kinofreak.com
Arrival-Date: Thu, 18 Jun 2020 07:41:54 -0500 (-05)
Final-Recipient: rfc822; a...@solarspeed.net
Original-Recipient: rfc822;a...@solarspeed.net
Action: failed
Status: 5.3.0
Remote-MTA: dns; mail.solarspeed.net
Diagnostic-Code: smtp; 553 5.3.0 <a...@solarspeed.net>... No such user here
--1847783583.1592484130/jarvis.smd.net
Content-Description: Undelivered Message
Content-Type: message/rfc822
Content-Transfer-Encoding: 8bit
Return-Path: <k...@www.kinofreak.com>
Received: from www.kinofreak.com (localhost [IPv6:::1])
(Authenticated sender: kino)
by jarvis.smd.net (Postfix) with ESMTPA id 1847783583
for <a...@solarspeed.net>; Thu, 18 Jun 2020 07:41:54 -0500 (-05)
MIME-Version: 1.0
Date: Thu, 18 Jun 2020 07:41:54 -0500
From: kino <k...@www.kinofreak.com>
To: a...@solarspeed.net
Subject: Test NDL
User-Agent: Roundcube Webmail/1.4.4
Message-ID: <fb6cb02f46a361d54cf319a675de9...@kinofreak.com>
X-Sender: k...@kinofreak.com
Content-Type: text/plain; charset=US-ASCII;
format=flowed
Content-Transfer-Encoding: 7bit
X-Greylist: Sender succeeded SMTP AUTH, not delayed by
milter-greylist-4.6.2 (jarvis.smd.net [IPv6:::1]); Thu, 18 Jun 2020
07:42:00 -0500 (-05)
X-Spam-Status: No, score=-0.5 required=5.0 tests=ALL_TRUSTED,TXREP
autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on jarvis.smd.net
Test NDL
--1847783583.1592484130/jarvis.smd.net--
----------------------------------------------------------------
The Vsite's full name is after all www.kinofreak.com and the *full*
internal email address of the sender therefore is
k...@www.kinofreak.com. So as far as the RFC's go this is perfect.
But yeah, I see that it ain't pretty and we might want to use
sender_canonical maps to rewrite the sender.
I'll look into it right away.
--
With best regards
Michael Stauber
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