We are in process of migrating SMTP domain along with users from one O365 Tenant to another
We are doing this with 3rd party tool call MigrationViz from BitTitan
We have users in o365 with mailboxes ranges from 1 GB to 30GB
The tool will migrate data from one tenant to another in cloud
The source tenant is not integrated with active directory. All identities are cloud only. They are not even using Dirsync
The target tenant having full functional Adfs and Dirsync
Once tenant get changed we have to reconfigure outlook profile.
Is it possible to retains users existing OST file so that after profile repair / change it will pick existing OST
We don't want to download entire mailbox as OST again on client workstation
As per Microsoft, we have to reconfigure entire outlook profile and this will create new OST file.
Is there any way so that we can retain and use existing OST?
Because nothing will change except Tenant
User SMTP domain, email address, autodiscover settings everything will remains same
Any pointers are really appreciated