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Can't create mailboxes after virtualizing Microsoft Exchange Server

If you're having problems creating mailboxes in Active Directory after virtualizing Exchange Server, get advice from our Exchange administration expert.

After we virtualized our Exchange server, we could no longer create mailbox accounts via Active Directory (AD). When we attempt to create a mailbox, it does not appear in the Exchange System Manager (ESM). Do you know what may be causing this?
VIEW MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A.

I'm assuming since you mention ESM and virtualization that you are running Exchange Server 2003 and Microsoft Virtual Server. It sounds to me like your Recipient Update Service (RUS) isn't properly stamping Exchange Server with the appropriate attributes. For more assistance, read Microsoft's article, How to troubleshoot the Recipient Update Service by using the application log in Exchange 2000 Server or Exchange Server 2003.

MEMBER FEEDBACK TO THIS ASK THE EXPERT Q&A:

It could be that they did not logon as the user after creating the mailbox. I have noticed that I have to initialize the user account, by logging into Outlook Web Access or Microsoft Outlook first, in order to have the mailbox show up in the ESM. I hope this helps.
—Sean S.

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