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Migrated user mailbox was disabled on-premises
Hi, We have a hybrid environment and one collegue by mistake performed the disable action for a user mailbox on the exchange on-premises server, this user mailbox was already migrated to exchange...
You mean they disabled the remotemailbox on-prem, right? But the AD account is intact?
You can always re-enable it on-prem in that case.
Enable-RemoteMailbox <username> -RemoteRoutingAddress username@<tenant>.mail.onmicrosoft.com
Then set the SMTP addresses as required on the remote mailbox as required and wait or force the AADConnect sync to 365...
Thanks Carlos Gomez I had the same issue.