#550 5.1.1 with Exchange 2007

We are getting this message back on a couple of users who have email addresses. We cannot send any mail to them. According to this message, exchange can't find the mailbox but its listed in exchange. Has anyone ever seen this?

Delivery has failed to these recipients or distribution lists:

Ramiro Hernandez
The recipient's e-mail address was not found in the recipient's e-mail system. Microsoft Exchange will not try to redeliver this message for you. Please check the e-mail address and try resending this message, or provide the following diagnostic text to your system administrator.

  _____  

Sent by Microsoft Exchange Server 2007







Diagnostic information for administrators:

Generating server: mail1.domain.com

ramiro.hernandez@domain.com
#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##

Original message headers:

Received: from mail1.domain.com ([192.168.9.10]) by mail1.domain.com
 ([192.168.9.10]) with mapi; Mon, 16 Jun 2008 13:23:30 -0500
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Jose Martinez <jose.martinez@domain.com>
To: Ramiro Hernandez <ramiro.hernandez@domain.com>
Date: Mon, 16 Jun 2008 13:23:29 -0500
Subject: IGNORE THIS MESAGE
Thread-Topic: IGNORE THIS MESAGE
Thread-Index: AcjP3hOVFQdH43KST+2acIUJGEHbQw==
Message-ID: <628DE88D44EC8143BC5E849CA75DAE28A300070B@mail1.domain.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <628DE88D44EC8143BC5E849CA75DAE28A300070B@mail1.domain.com>
MIME-Version: 1.0
LVL 12
jjmartineziiiAsked:
Who is Participating?
 
jjmartineziiiAuthor Commented:
I called Microsoft and while on the phone, I realized that the mail server was binding to an old DC (one that we were planning to remove this coming week). Forcing it to bind with a better one fixed all of our problems.
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coolsport00Commented:
Yes; if I'm not mistaken, this was an error I received a couple times. The LegacyDN part of the mailbox properties is mismatched. If you delete the acct cache in Outlook, retype the name of the "problem user", then send an email, it should work. Let me know if still with issues.

~coolsport00
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jjmartineziiiAuthor Commented:
thanks coolsport. i'm not sure what you are saying. i redownloaded the address book and i still can't send to the user. this user doesn't not use oulook. they are strickly webmail
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coolsport00Commented:
Outlook cache's names using an OST file (C:\Documents and Settings\user.profile\Local Settings\Application Data\Microsoft\Outlook\outlook.ost). You can delete this file and Outlook will recreate it.

Regards.
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