In praise of inactive mailboxes

Inactive mailboxes are only available inside Exchange Online and don’t exist outside Office 365. Litigation or in-place holds keep inactive but soft-deleted mailboxes in a state in which their data is easily accessible for compliance and recordkeeping purposes. This article covers why inactive mailboxes add real value to Office 365 and perhaps some places where they're not so good... https://www.petri.com/in-praise-of-inactivity