Hi Everyone
I'm undertaking a slow and steady office365 upgrade. At the moment I'm trying to migrate all our inboxes that are going to become shared inboxes, on at a time,
I keep, seemingly randomly, getting the error:
MigrationPermanentException: You can't use the domain because it's not an accepted domain for your organization.
From what I've read, this happens if you've got a domain in the e-mail addresses of the mailbox you're trying to convert that you don't have in the azure (e.g. domain.local) but i don't have that, and never have. We have recently added a UPN Suffix so login names are now ad.domain.co.uk rather than domain.local but i changed this yesterday morning, and have forced syncs etc but still no luck.
Any help would be greatly appreciated.
Thanks!