im running a sbs 2011 with exchange 2010 , this mail server has about 4 email domains running and i added 1 more the same way i do everything.
the MX points to a Barracuda 300 spam firewall then from the Cudda to the external IP of the mail server. same way the other 4 are setup. this domain can send internally fine and send out but when you try to send to it you get
Requested gave this error:
No such domain at this location
A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk.
Diagnostic information for administrators:
Requested #550 No such domain at this location ##
BUT when i do an smtp test with the MX it works fine
Testing SMTP connection for receivingdomain.com with the following parameters:
SMTP Server SMTP Port Use MX Records
xxx.xxx.xxx.xxx 25 Yes
Successfully sent test message:
Connected to xxx.xxx.xxx.xxx:25 session output follows:
220 receivingserver Microsoft ESMTP MAIL Service ready at Fri, 2 Dec 2011 13:24:12 -0500
250-receivingserver Hello [xxx.xxx.xxx.xxx]
250-X-EXPS GSSAPI NTLM
250 2.1.0 Sender OK
250 2.1.5 Recipient OK
354 Start mail input; end with <CRLF>.<CRLF>
Content-type: text/plain; charset=utf-8
Date: Fri Dec 2 13:24:13 2011
Subject: Test message
This is a test message from your Barracuda Spam & Virus Firewall.
and even from other verify email address sites it works fine