Domain users cannot get email to another domain user
Posted on 2012-04-02
I have an odd issue where Exchange 2010 users are unable to email just 1 user on the same domain and server. Here is the email message we all get when we try to send to USER1.
NOTE that they also get these same message if they email the user in question at his other business email address that we do not host or support.
Delivery has failed to these recipients or groups:
A communication failure occurred during the delivery of this message. Please try resending the message later. If the problem continues, contact your helpdesk.
Diagnostic information for administrators:
Generating server: server.DOMAIN.com
#< #5.5.0 smtp;550 Unrouteable address> #SMTP#
Original message headers:
Received: from server.mail.DOMAIN.com ([192.168.2.5]) by server.DOMAIN.com
with Microsoft SMTPSVC(6.0.3790.4675); Mon, 2 Apr 2012 12:03:20 -0700
Received: from server.mail.DOMAIN.com ([fe80::60e9:8fe2:1056:30aa]) by
server.mail.DOMAIN.com ([fe80::60e9:8fe2:1056:30aa%10]) with mapi id
14.01.0289.001; Mon, 2 Apr 2012 12:03:19 -0700
From: "USER 2" <USER2@domain.com>
To: "USER 1" <USER1@domain.com>
Date: Mon, 2 Apr 2012 19:03:18 +0000
X-OriginalArrivalTime: 02 Apr 2012 19:03:20.0125 (UTC) FILETIME=[44D8DED0:01CD1103]