How can I see how much space is left in my AT&T Unified Messaging mailbox?

To see how much storage you are using, click Calculate Folder Sizes on the PC Folder Lists screen. This displays the contents of your Inbox, Trash, and other folders that reside on the AT&T Unified Messaging^SM server, not your computer.

Need more room? You can add space to your account 50MB at a time, up to 200MB.