We recently migrated most of our users to Office 365, and due to a miscommunication, three users that should have stayed on premises were migrated, converted to the RecipientTypeDetails RemoteUserMailbox, and had their local mailboxes disconnected. Reconnecting their mailboxes failed as they were of the wrong user type: The solution was to remove the Exchange… Continue reading Restoring an accidentally migrated mail user to On-Prem Exchange
Category: Exchange Server
Fixing “No DKIM keys saved for this domain” in EOP and Office365
Sometimes a newly added domain in Microsoft EOP will not let you enable DKIM from the web user interface. The only workaround I know of is to prepare the domain using PowerShell. To connect a PS session to O365, I use the following script, ripped straight from Microsoft’s documentation: After waiting for an eternity for… Continue reading Fixing “No DKIM keys saved for this domain” in EOP and Office365
Exchange – another lesson learned
This is why we test things before going live: After migrating a test box from the old Exchange environment, it could receive mail just fine, and sending mail out of the organization worked flawlessly too. Unfortunately any mail sent from this account to recipients within the old Exchange environment got stuck in the mail queue.… Continue reading Exchange – another lesson learned