We have recently implemented Office 365 and migrated our mailboxes.
Since we have limited licenses I have to revoke licenses from the users who has left the organisation and assign them to the new ones.
We have a policy that we have to retain the emails of employees who have left for certain amount of years.
My question is, if I remove a user's account license, will it also remove his/her emails?
How can I keep user mailbox without license? Is transferring to the Shared Mailbox only option?