Greetings Ken,
Fist of all, my apologies because I am new at moodle and some of the things I say will make you want to kill me and think I have an ID10T problem. But I am new and I don't know of any other way of learning except by trying,reading documentation and asking the experts.
That being said:
Test environment running ubuntu server 12.04 on a VM in a corporate network.
The site does not have a fully qualified domain, it is only accessible from inside our corporate network.
I have taken some 19 backups and used this 3rd party tool called "conversion thingy" to convert them to moodle 2.x. I have also created the backup, changed the extenssion from .zip to .mbz and they restore successfully (no I am not all goofy and happy that this change of file extension made it work work and I know there is corruptions and problems by just doing things like this, but that is the purpose of a test environment right?). When I backup my courses, uncheck the "user data" option, I uncheck the "course files" option, and I also select "non" under "users". So no users should be backed up or enrolled.
I only assigned 4 people as admins in my environment, other than that the other 175 are registered as regular users, which some have teacher level access to their course.
The header of one of the messages is:
Received: from svr.ad.my.domain (2002:cec0:bd0c::cec0:bd0c) by
mail.svr1.ad.my.domain (2002:cec0:bd09::cec0:bd09) with Microsoft SMTP
Server (TLS) id 5.0.13.2 via Mailbox Transport; Mon, 2 Feb 2015 10:56:24
-0700
Received: from svr.ad.my.domain (2002:cec0:bd22::cec0:bd22) by
svr.ad.my.domain (2002:cec0:bd0c::cec0:bd0c) with Microsoft SMTP
Server (TLS) id 5.0.13.2; Mon, 2 Feb 2015 10:58:11 -0700
Received: from corporatefirewall.my.dom.ain (X.X.X.X) by
svr.ad.my.dom.ain (X.X.X.X) with Microsoft SMTP Server (TLS)
id 5.0.13.2 via Frontend Transport; Mon, 2 Feb 2015 10:56:47 -0700
Received: from unknown (HELO my-relay-1.my.dom.ain) ([X.X.X.X])
by corporatefirewall.my.dom.ain with ESMTP; 02 Feb 2015 10:56:46 -0700
Received: from tes-moodleserver (tes-moodleserver.my.dom.ain [X.X.X.X)
by my-relay-1.my.dom.ain (Postfix) with ESMTP id DC49B140849
for <user@my.dom.ain>; Mon, 2 Feb 2015 10:56:45 -0700 (MST)
Date: Mon, 2 Feb 2015 10:59:30 -0700
To: Test Moodle Admin <admin@my.dom.ain>
From: <noreply@test-moodleserver>
Reply-To: Do not reply to this email <noreply@test-moodleserver>
Subject:
Message-ID: <a60eb92af9ead717bb7ac29c470b0a60@test-moodleserver>
X-Priority: 3
X-Mailer: PHPMailer Moodle 2014051203.03 (https://github.com/PHPMailer/PHPMailer/)
MIME-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
Return-Path: admin@my.dom.ain
X-MS-Exchange-Organization-Network-Message-Id: 3e76c0c2-70fe-41b0-ef7e-08d20d28f142
X-MS-Exchange-Organization-AVStamp-Enterprise: 1.0
X-MS-Exchange-Organization-AuthSource: svr.ad.my.domain
X-MS-Exchange-Organization-AuthAs: Anonymous
My test server is registered with our production mail relay servers, so e-mail should be coming through with out a problem.
I don't have a test mail server, the mail function work with the built in PHP mailer and our corporate mail relay server.
Hope this helps narrow down the problem.
Thank you for taking the time.
Kind Regards,
DM