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#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##

Posted on 2011-09-19
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Last Modified: 2012-05-12
We have a single sbs2008 running exchange.

All of our e-mails for current users are working fine. However when we create a new user, and try to send external e-mails through the new account, we get a bounce back as follows :-

Diagnostic information for administrators:

Generating server: SBS2008.tgdomain.local

nigel@domainname.co.uk
#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##

Original message headers:

Received: from SBS2008.tgdomain.local ([fe80::415b:f737:c0e7:3927]) by
 SBS2008.tgdomain.local ([fe80::415b:f737:c0e7:3927%10]) with mapi; Mon, 19 Sep
 2011 13:02:07 +0100
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: copier2 <copier2@tgdomian.co.uk>
To: "nigel@domainname.co.uk" <nigel@domainname.co.uk>
Date: Mon, 19 Sep 2011 13:02:06 +0100
Subject: test
Thread-Topic: test
Thread-Index: AQHMdsPzlYvRiFk6A0iNX5sF+6CTsg==
Message-ID: <4BA9FDE58FCC87499C76D2776D34E53612E9A34B04@SBS2008.tgdomain.local>
Accept-Language: en-US
Content-Language: en-GB
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <4BA9FDE58FCC87499C76D2776D34E53612E9A34B04@SBS2008.tgdomain.local>
MIME-Version: 1.0

Internal mail works fine, and we can receive e-mail from an external scource.

Can anyone advise on how we can troubleshoot this, so that new users can send external mail?

Many thanks.
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Question by:nigelbeatson
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nigelbeatson earned 0 total points
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I have resolved this myself. Thanks.

I had been trying to add accepted domains to our exchange server, in an an attempt to say that any mail from this domain should be accepted. I must have miss understood what this was for, as when added to the Organization - hub transport - accepted domains, it creates the reported issue.

I have therefore resolved this incident, and will raise another about the best way to add eccepted domains so that they are not bounced or spam filtered.

Many thanks.
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Author Closing Comment

by:nigelbeatson
Comment Utility
resolved own issue
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