Your Inbox messages on your sidebar. Read your email from the sidebar via a flyout. You don't even need to have Outlook open! Incudes the ability to create, reply delete, and forward email. Clicking a message header displays the message body in a flyout.

Some instances of Outlook will dispay a security warning asking for permission to get the sender and body of the message. There is a workaround add-in at mapilab.com/outlook/security/. That lets you supress these warnings.

This one can practically replace Outlook's email capabilities, no more need to keep it open.

Requirements:
* Outlook

The license of this software is Freeware, you can free download and free use this email checker software.