Mailspring - Mailspring is a mail client for Mac, Windows and Linux.

Paperless-Home - Find your documents when you need them most. Paperless manages them so you never have to dig through piles of paper or chaotic folders on your PC again.

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Teedy - Teedy is a lightweight document management system packed with all the features you can expect from big expensive solutions but still easy to use.

The Bat - The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.

Paperless - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless, MacJournal and many more. Based in MN.