Return
-
Title
Mail migration failed, because the user does not have a matching target object with a mail address -
Description
After moving the domain and running a new email migration task the following error is causing the migration to fail.
[1/2]Error creating source session. Mailbox may not exist on the Exchange server(The SMTP address has no mailbox associated with it.)[2/2]Error creating source session. Mailbox may not exist on the Exchange server(Mailbox may not exist on the Exchange server)Mail migration failed, because the user does not have a matching target object with a mail address -
Cause
The domain was moved and the information for the source and target email domains in the On Demand Migration user table contain old information which is no longer valid. -
Resolution
Follow the process from the article below.
How to re-migrate users after the SMTP DNS domain has been moved to the target