Introduction For most organizations, Office 365 (mailboxes) can contain both high business impact and personally identifiable information, so it’s important that we track who logs on to the mailboxes in the organization and what actions are taken. By default, mailbox auditing in Office 365 isn’t turned on, so this guide will help you to setup and verify mailbox auditing in Office 365. This guide will walk you through the following steps: Step 1: Connect to Exchange Online Step 2: Get the current state of audit logging Step 3: Enable mailbox audit logging Step 4: Set the age limit for mailbox…