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 Exchange 2003 – mailbox doesnt appear in properties for user and cant create an Microsoft Outlook profile
A question from a SearchExchange.com user: We have an existing Windows 2003 domain which has an existing Exchange 2003 implementation on it that works great. We added a child domain and ran domain prep on it. We created a Recipient Update Service entry to handle policy extension to the child domain. We can create a mailbox for child domain users, but the mailbox doesn't appear in the mailbox list, the email addresses don't appear in the properties for the user, and we can't create an Outlook profile that recognizes the user.

Software/Hardware used:
ASKED: March 25, 2008  6:36 PM
UPDATED: March 26, 2008  3:10 PM

Answer Wiki:
To service recipients from another domain in the AD Forest, you need to run <b>setup /DomainPrep</b> in that domain. This creates the necessary objects in that Domain and assigns the required permissions. Next, you need to create a Recipient Update Service (RUS) for that domain, and point it to a Domain Controller (in that domain). RUS watches AD for new objects (recipients) or changes to existing ones, and applies Recipient Policies. This generates the email addresses and other relevant attributes required to mailbox-enable a user or mail-enable users and other types of objects (Distribution Groups, Contacts, etc.). The following KnowledgeBase artcile has more details: <a href="http://support.microsoft.com/kb/275294">KB 275294</a>: Creating Exchange Recipient Update Service instances for remote domains
Last Wiki Answer Submitted:  March 26, 2008  3:10 pm  by  bsuneja   630 pts.
All Answer Wiki Contributors:  bsuneja   630 pts.
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