Forum Discussion
dalbright
Sep 05, 2019Copper Contributor
Adding Domain to Existing O365
My company recently acquired another company with about 60 users. We use Exchange Online for our email with an on premise AD and run a DirSync setup. The smaller company currently uses O365 for m...
- Sep 05, 2019
Hi dalbright
As far as I'm aware, there isn't a easy native way to join to different tenants together, though as more businesses sign up to EOL and this becomes more common, I'd hope that MS introduces a mechanism to do this (as well as splitting up a tenant).
The only thing I have in my notes is a document from on how to do this manually
I've not done this myself - we were looking into it as a client had the same requirements as you, though in the end they decided to keep the tenant separate.
Ash365
Sep 06, 2019Brass Contributor
Easy.. add their domain as an accepted domain in Office 365
You will need to get a export of their AD user list in a csv file.
Create AD users in your AD.
Export their .PST file and uploadt it to the azure blob spot and use the pst import mapping file to map those pst files to their new mailboxes.
Thanks,
Ash,MCE
You will need to get a export of their AD user list in a csv file.
Create AD users in your AD.
Export their .PST file and uploadt it to the azure blob spot and use the pst import mapping file to map those pst files to their new mailboxes.
Thanks,
Ash,MCE