Discover best Outlook Extension Online softwares, apps and websites.

Best Outlook Extension Online Apps

Freemium

SalesHandy email tracking tool for Gmail allows you to know whether your sent emails have been read or not.

Open Source

Kopano is an open-source groupware application suite originally based on Zarafa.

Freemium

Boomerang adds scheduled sending and the easiest, most integrated email reminders to Gmail, helping you reach Inbox Zero.

Freemium

Hightail is a file sharing and collaboration platform.