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TechGuyTJ
Asked: 2011-01-05 11:31:37 +0800 CST

Exchange 2003 mailbox migrated to 2010 not showing up in Address book

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I have migrated about 45 mailboxes at this point from our single instance of Exchange 2003 to a High Availability Exchange 2010 environment successfully. However one mailbox moved successfully and the user is able to send and receive e-mail internally and externally with no problems but they do not show up in the Global Address List. The OAB is owned by an Exchange 2010 mailbox server. What am I missing?

  • Did they appear in the GAL without issues when their mailbox was on Exchange 2003?
      • yes
  • Was it OK when the OAB generation server was Exchange 2003?
      • Yes
  • Does rebuilding the OAB help?
      • I did an update to the OAB and it didn't change anything
  • Are there any OAB errors in the event log?
      • I do not see any errors in the even logs

One interesting thing is that in an e-mail message if I select All Users from the All Address list the user shows up there but not in the Global Address List.

email exchange-2010

1 Answers

  1. If you could edit your question to include the following, it might aid the troubleshooting.

    • Did they appear in the GAL without issues when their mailbox was on Exchange 2003?
    • Was it OK when the OAB generation server was Exchange 2003?
    • Does rebuilding the OAB help?
    • Are there any OAB errors in the event log?

    I assume you have verified the Hide user from Exchange address lists is not ticked in the Exchange Management Console?

    Is the user an administrative user (or have they ever been)? Check out this question which had me tearing my hair out for the best part of a morning. From what you describe, the symptoms sound similar enough for that to be a possible explanation.

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