recipient update service

Posted on 2011-10-17
Last Modified: 2012-05-12
I have a question as I have been searching for a clear answer. I understand that RUS was responsible for the service for creating email address policy in exchange 2003 server. I understand that this has been replaced in exchange server 2003 and RUS does not perform this service anymore. What is the role of RUS under exchange 2007. Does anyone have any published articles. I am trying to find out if it has anything to do with the address list in exchange 2007.
Question by:techdrive
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    Accepted Solution


    Here is the Good article for RUS in Exchange 2007

    Author Comment

    I am reading the article and it talks about co-existing with exchange 2003. As far as 2007 exchange I do not see a use for its existence. Tha article kinds of hints this but not sure if I am correct. Do you have anything that explicilty state its purpose in exchange 2007.
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    Expert Comment

    The Recipient Update Service (RUS) used by Exchange Server 2003 for the provisioning of new and existing Exchange objects like mail enabled users, mailbox users and contacts is an asynchronous task which stamps Exchange objects with e-mail addresses based on Exchange recipient policies.

    Exchange Server 2007 does not use the RUS. In Exchange 2007, recipients are fully provisioned when they are created in the Exchange Management Console (EMC) or in the Exchange Management Shell (EMS), so the asynchronous RUS service used in Exchange Server 2003 is gone. The RUS API (Application Programming Interface) used to calculate new Exchange objects still exists in Exchange 2007 and is now used directly by Exchange Management Shell cmdlets or the GUI to provision these objects..

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    Expert Comment

    you will get the details information about RUS at this technet link
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