I am having a strange problem. I have exchange 2013 with Domained joined clients and non domain clients. All running outlook 2007, 2010 or 2013
when I send an email from a joined domain client I can send internally and externally no problems.
however when I send from a non domain client I can send externally but not to internal clients. When I do I get the following error
Diagnostic information for administrators:
Generating server: 5RGS003.5rings.local
Remote Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'
Original message headers:
Received: from 5RGS003.5rings.local (172.16.0.15) by 5RGS003.5rings.local
(172.16.0.15) with Microsoft SMTP Server (TLS) id 15.0.620.29; Wed, 3 Jul
2013 09:47:55 +0100
Received: from 5RGS003.5rings.local ([184.108.40.206]) by 5RGS003.5rings.local
([::1]) with mapi id 15.00.0620.020; Wed, 3 Jul 2013 09:47:54 +0100
Content-Type: application/ms-tnef; name="winmail.dat"
From: Maxine Laker <Maxine.Laker@5ringstelecom.co.uk>
To: Ashley Hay-Ellis - 5 Rings IT
Date: Wed, 3 Jul 2013 09:47:53 +0100
Accept-Language: en-GB, en-US
This is very strange and cant see an obvious reason for the problem.
Other points that might be needed, I have a signed and authorised SSL certificate not an self signed one. The problem occurs on XP, Server 2003 and windows 7 and 8 machines.