Open-sourcealternatives to Microsoft Outlook

About
The open-source alternatives to Microsoft Outlook in the Prosper collection are Mailspring and Thunderbird for Android.
Alternatives
2
Most stars
Mailspring ★ 18k
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About this list

These are the 2 tools in the Prosper collection that people use in place of Microsoft Outlook, ranked by GitHub stars. Each one links to its own page with an overview, what it does well, and how it compares.

Compared

Ranked by GitHub stars
  1. No. 300MailspringFast, open-source desktop email client for Mac, Windows and LinuxSuperhuman★ 18k
  2. No. 357Thunderbird for AndroidPrivacy-focused email app for Android from the Thunderbird teamGmail—

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