We have recently switched from an internal Exchange server to a hosted Exchange server. When the employees try to email each other, the get "Delivery has failed to these recipients or groups". Below is an example of the message received back to the sender.
Delivery has failed to these recipients or groups:
David
Pollard (David.p@groomsirrigation.com)
The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk.
Diagnostic information for administrators:
Generating server: 58823.exhost3.secureserver.net
IMCEAEX-_O=First+20Organization_ou=Exchange+20Administrative+20Group+20+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=David+20Grooms@ex3.secureserver.net
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##
Original message headers:
Received: from P3PWEX3MB006.ex3.secureserver.net ([169.254.8.185]) by
P3PWEX3HT002.ex3.secureserver.net ([184.168.131.80]) with mapi id
14.02.0283.003; Tue, 21 Aug 2012 05:49:14 -0700
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: "doug@groomsirrigation.com" <doug@groomsirrigation.com>
To: "David Pollard (David.p@groomsirrigation.com)"
<David.p@groomsirrigation.com>
Subject: test
Thread-Topic: test
Thread-Index: Ac1/m2KLRfkpszoeRc+Y8DHTCkdizw==
Date: Tue, 21 Aug 2012 05:49:14 -0700
Message-ID: <B8581D945C92DB41B42136853B5F8FECDB951D@P3PWEX3MB006.ex3.secureserver.net>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <B8581D945C92DB41B42136853B5F8FECDB951D@P3PWEX3MB006.ex3.secureserver.net>
MIME-Version: 1.0
X-Originating-IP: [174.76.x.x]