When running the mail-box enable process with Exchange 2007, it appears to take far too long to complete, fails, or appears as though it is timing out.
When running mailbox enabling we use the following process:
- Find the object
- Open the object
- Disable the mail enabled user. We do this because you cannot mailbox enable an existing mail-enabled account. This removes all exchange attributes, such as the legacyexchangedn.
- Then we run a test to check the existence of the legacyexchangedn attribute. We do this to confirm it does not exist and that the object is not a mail-enabled object. This process loops until it confirms the deletion, and will wait for Active Directory replication to complete.
- When it is confirmed that the attribute does not exist, then the mailbox is created and enabled.
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