Forum Discussion
Outlook client configuration post MS365 tenant migration
Throughout the course of this year I have slowly been migrating our various companies into one tenant, using a mix of MS Compliance and a third party tool. The back end of these tenant moves has w...
It the method used by Hybrid, and most recently by Microsoft's own tenant-to-tenant migration solution. https://learn.microsoft.com/en-us/exchange/mailbox-migration/mailbox-migration#migrate-mailboxes-from-exchange-server
Unfortunately this only applies if migrating from on-premise exchange to M365, I'm actually migrating from one 365 tenant to another 365 tenant so the procedures noted in this link don't apply sadly.
- The same exact method is used by Microsoft's own tenant-to-tenant migration tool: https://learn.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration?view=o365-worldwide