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I have an unusual issue with my Exchange 2010 environment. The set-up is as follows:

  • 5x domain controllers - (2x2003, 2x2012, 1x2008)
  • Domain Function Level is: Windows Server 2003
  • Server 2003, Exchange 2003 Ent SP2
  • Co-existence
  • Server 2008 R2, Exchange 2010 Std SP3

A dcdiag /v /a /q shows everything is healthy.

The issue we are having is:

  1. A user is created via Active Directory (no mailbox).
  2. NOTE: We wait up to 15 minutes and have confirmed replication is working in AD as the other DC's have the user present. We attempt to add a mailbox to the user via Exchange 2010 using the Exchange Management Console.
  3. The user is not visible within "Recipient Configuration". NOTE: We are not searching for the user under "Recipient Configuration > Mailbox"
  4. If we attempt to use the find feature it does not find the user
  5. We are able to mail enable the user if we use the Exchange Management Shell.

At first I thought that perhaps the EMC may have had a filter on it, but this does not appear to be the case. I have also tried to reset the MMC cache (C:\Users\%username%\AppData\Roaming\Microsoft\MMC) by renaming the file.

Has anyone come across this problem or does anyone have any ideas?

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  • Have you tried closing the EMC and reopening it, just to be sure its not showing old information? (it shouldn't anyways if you are searching, but worth a try)
    – Grant
    Nov 25, 2013 at 1:35
  • Yeah I have tried that, and like I said I even cleared the MMC cache. Thanks for the suggestion though.
    – Dave
    Nov 25, 2013 at 3:09
  • Also probably not going to work, but try logging in under a different admin account?
    – Grant
    Nov 25, 2013 at 3:32
  • Does the user shows if you restart "Exchange AD topology"?
    – Vick Vega
    Nov 25, 2013 at 6:03

3 Answers 3

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I had a very similar situation and found that the account was actually created as a Mail Contact, Recipient Type Details column (EMC) = "Mail User" as opposed to "Mail Contact". I was unable to enable any mailbox features on the account. Although the account looks like a normal user account in AD, it doesn't show up as a normal mailbox or an account that a mailbox could be added to. We had to rebuild the account.

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I know this question is super old but I'm hoping my answer can clear this up for anyone who comes across this. I had this problem today, and what solved it for me was to make sure the attribute msExchRecipientTypeDetails in the user's AD profile is not set.

What caused this for me was that a user had a mailbox previously, but they no longer needed access to email, so their mailbox was disconnected and deleted. When a user is assigned a mailbox, that attribute is set to 0. When the user's mailbox was deleted, this attribute did not get reset for some reason. So, when I tried to create a new mailbox for them, they would not show up in the find dialogue, because that value was set to 0 instead of being not set.

Hope this helps somebody in the future!

EDIT: I just realized you said you created an AD account with no mailbox. Then you say that you were searching for them under recipient configuration. I do not believe users without mailboxes show up there, as they are not considered recipients until they are assigned a mailbox.

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Did you check the search scope in the select user dialog?

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