Small annoyance with domain name 1

[baldar538]

Hi,
This is more than an annoyance than a real problem, and is currently making it a little more difficult to troubleshoot something we are testing. But, here goes:

We are using an architecture similar to this:

sender -> internet --> gateway -> mailserver -> client

gateway is a 3rd party appliance, mailsever is running sendmail/popper

Between sender and internet, my e-mail address is me@mydomain.com

Between internet and gateway it is still me@mydomain.com

Between gateway and mailserver it is still me@mydomain.com

between mailserver and client it is me@mydomain.com

However, somewhere between the e-mail server and the client it turns to me@mail.mydomain.com (the servers hostname)

I'm assuming sendmail is changing this for some reason, but I can't figure out why. Any ideas?

Thanks in advance.

 

[mbrooks]

What does your virtusertable look like?

M. Brooks

http://mbrooks.info

 

[baldar538]

Hi, thanks for your reply.

My virtusertable file is unmodified from the default on the system, its all comments.

If it would help, here is an example header:

Return-Path: <sender@sendingdomain.com>
Received: from mailgw.receivingdomain.com (mailgw [x.x.x.x])
by mail.receivingdomain.com (8.11.3/8.11.3/SuSE Linux 8.11.1-0.5) with ESMTP id k3JJmuO31464
for <me@receivingdomain.com>; Wed, 19 Apr 2006 13:48:56 -0600
Received: from mailgw.receivingdomain.com (127.0.0.1) by mailgw.receivingdomain.com (MlfMTA v3.1r24) id h8q9ps0171sk for <me@receivingdomain.com>; Wed, 19 Apr 2006 14:46:38 -0500 (envelope-from <sender@sendingdomain.com>)
Received: from nproxy.sendingdomain.com ([x.x.x.x])
by mailgw.receivingdomain.com (SonicWALL 4.6.0.7527)
with SMTP; Wed, 19 Apr 2006 14:46:38 -0500
Received: by nproxy.sendingdomain.com with SMTP id a25so976389nfc
for <me@recevingdomain.com>; Wed, 19 Apr 2006 12:48:55 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=beta; d=gmail.com;
h=received:message-id:date:from:to:subject:mime-version:content-type;
b=rzAOL+wjuDzMWPACkbnog5j5PDBplW0kSYfy6AzrRVeH+3INWkFJrbfRbG0tOtMxAMby
D3XqrPUafghO5RYQcVAYuHUvf/CU+GEIP/eci/FkqxYcb8tq0qkEBW6LMpHbAayn2OjJ65
s8uJFVTC32NhXpswLfsBQBXMICso+tPzA=
Received: by x.x.x.x with SMTP id v11mr3401225nfk;
Wed, 19 Apr 2006 12:48:55 -0700 (PDT)
Received: by x.x.x.x with HTTP; Wed, 19 Apr 2006 12:48:55 -0700 (PDT)
Message-ID: <30cd8b630604191248t36852392y21d56933c2d58d2@mail.sendingdomain.com>
Date: Wed, 19 Apr 2006 14:48:55 -0500
From: "External Guy" <baldar538@gmail.com>
To: "Me Internally" <me@mail.receivingdomain.com>
Subject: Is it soup yet?
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_11713_25404613.1145476135249"
X-Mlf-Threat: nothreat
X-Mlf-Threat-Detailed: nothreat;none;none;list_addrbk_sender
X-Mlf-UniqueId: 200604191946370019263
X-UIDL: (@A"!)Ij!!X[X!!V23"!

 

[mbrooks]

Add this to your sendmail.mc

FEATURE(masquerade_envelope)dnl

rebuild the sendmail.cf

m4 [i]/path/to/[/i]sendmail.mc > [i]/path/to/[/i]sendmail.cf

and restart Sendmail

M. Brooks

http://mbrooks.info

 

[baldar538]

Thanks for your reply. I think I had to do a few more lines than that, but your answer led to to the answer. What I ended up adding was:

Other MASQUERADE_AS(`mydomain.com')dnl
Feature FEATURE(`masquerade_envelope')dnl
Feature FEATURE(`allmasquerade')dnl

And, now it seems to work.

Thanks again