For one particular sender the 'To' address (the Dist. List) is being changed en-route and I do not understand why or how.
I don't think it is an hMS issue - I would just like some advice to track down what is going on.
In the listings below:
mydomain = is my own domain - hMS domain
mail-list-DOMAIN = domain of the mailing list
senderdomain = sender's domain (not really relevant)
The sender has sent me a jpg showing that the sent email has the 'to' address <firstname.lastname@example.org>
hMS log shown the line:
"SMTPD" "RECEIVED: RCPT TO:<email@example.com>"
This says that the envelope-to contains mydomain by the time it arrives at hMS.
Extract from the email headers of the email I receive:
Code: Select all
Delivered-To: firstname.lastname@example.org Received: from smtp.hosts.co.uk (Mail3 [10.27.27.35]) by root.mydomain.org with ESMTP ; Fri, 15 Jan 2016 11:55:01 +0000 Received: from smtp.hosts.co.uk ([126.96.36.199] helo=smtp.hosts.co.uk) by root.mydomain.org with SMTP (2.3.3); 15 Jan 2016 11:54:59 +0000 Received: from [xx.xx.10.188] (helo=NGBlack) by smtp.hosts.co.uk with esmtpa (Exim 4.80.1) (envelope-from <email@example.com>) id 1aK2y4-0007ap-9C for firstname.lastname@example.org; Fri, 15 Jan 2016 11:55:04 +0000 To: <email@example.com>
which shows that the original envelope-to address is as it should be: <mail-list-domain>
In contrast the 'To:' line is different. The email name is correct but the domain is 'mydomain'. This is in conflict with the jpg image I have seen and the envelope-to address.
The 'Delivered-To' shows <mydomain> which is not surprising as the RCPT TO: was to there.
So what we seem to have is that at the 1st hop the envelope-to is <mail-list-domain> which becomes <mydomain> by the time it gets to hMS.
That is mystery one.
The second is that the 'To:' header of the original email is in conflict with the envelope-to - unless it has been changed during transport to match the final envelope-to.
I'm trying to get a copy of the original email inclusive of its headers but I doubt if it will arrive.
Anyone has any ideas what is going on?
The sender has tried twice with the same results.
If I send a test email from a gmail account to this Distribution List it works fine.