While working on a unique tenant-to-tenant migration, we were going to be synchronizing a significant number of identities that had already been hybrid moved to a tenant from an on-premises Exchange organization.
Since they had existing values in msExchMailboxGuid, there was a likelihood that they might not be synchronized as just user identities–even though they were set with the msExchRecipientDisplayType of 6 (RemoteMailUser) and msExchRecipientTypeDetails of 128 (MailUser). … [ Continue reading ]