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Best Practice - Retaining Mailboxes Exchange Online
I have read that there are a number of ways to retain a users mailboxes when they leave the business, Inactive, In-Place Hold, Litigation Hold. Does anyone have any real life examples of how the...
TonyRedmond Have you heard of large organizations placing all mailboxes on litigation hold and enable auto-archiving on all mailboxes as to avoid issue with mailboxes reaching max capacity? Pros/cons?
Those are all the same method basically, all powered by the native "hold" functionality in Exchange, just a different variation of it. As holds require you to have at least ExO Plan 2 license, the Inactive mailboxes are preferred method as they minimize the costs. Shared mailboxes or exporting to a third-part or PST file is another option, but those don't ensure "immutability" of the data, which is what's usually required in order to meet compliance/legal guidelines.