QUICK ANSWER To create a shared mailbox in Outlook, log in to Microsoft 365 with an administrator account, then select Teams & Groups > Shared mailboxes > + Add a shared mailbox. Enter the mailbox ...

This post will help you if you cannot add a second Contact address for another domain to an Office 365 Shared mailbox.

If you keep getting the "Your mailbox is almost full" warning message from Outlook 365, use these methods to free up space in your mailbox.

Microsoft is adding to Outlook.com for free new ad-free inbox, enhanced malware and phishing protection and larger mailbox sizes. The catch: Users must be Office 365 Home/Premium users to qualify.

I want to create an O365 group that auto-populates the user's mailboxes when they are created/deleted. Similarly to how you can create an auto-populating distribution group.

This also allows admins to offload mailboxes from Office 365 to on-premise Exchange without additional resources or third-party tools.

So I've got a head scratcher I've been trying to deal with and I can't figure it out. We have a handful of shared mailboxes which different people have access to and have been working for years ...

IT pros can now centrally deploy Office add-ins to end users using Microsoft's Office 365 Centralized Deployment service, which was launched commercially today.