Exchange Delegate Exchange mailbox without Outlook automapping By default, Exchange Online in Office 365 will automatically map delegated mailbox's in Outlook. Depending on your requirements this may be the desired outcome, however, if it's not you'll notice that you can't
Exchange Connect to Exchange Online with PowerShell Connecting to Exchange Online via PowerShell offers more administrative control than you otherwise have available in the web interface. It's very useful for bulk changes, automation and situations where finer administrative control is