Forum Discussion
Thao_Dao_Phuong
Jan 02, 2026Brass Contributor
Archive-online
Could you please advise if there is any way to delete the mailbox data that is currently stored in the online archive? Thank you.
Mohamed_Hashim
Jan 20, 2026Copper Contributor
Yes you can delete mailbox data stored in the online archive.
- Open archive mailbox - delete folders/items which is the fastest way to delete
- Delete data using retention policy
- Hard delete if requirement is to delete all online archive data - unassign the license and Microsoft will soft delete the archive
- eDiscovery purge option
Hope this give you more info.
- Thao_Dao_PhuongJan 20, 2026Brass Contributor
Thank you Hashim
The storage in the Online Archive is extremely large almost a terabyte, so manual deletion isn’t feasible. I chose to use an MRM retention policy as the solution.
- Mohamed_HashimJan 22, 2026Copper Contributor
Got it..Let me know if you need help to create MRM policy. Thanks