How to Use a Microsoft 365 Retention Policy to Manage Inactive Mailbox Content

Most Microsoft 365 tenants will have to manage the mailboxes of ex-employees. Retention policies are an excellent method to achieve this goal, if you remember to add mailboxes to a suitable retention policy before deleting their Azure AD account. In this article, we consider Microsoft’s recommendation to use a specific retention policy for inactive mailboxes and how to go about using such a policy.