mailspring

Install command:
 $ brew cask install mailspring 

Name: Mailspring

Fork of Nylas Mail

https://getmailspring.com/

/api/cask/mailspring.json (JSON API)

Cask code on GitHub

Current version: 1.7.8

Analytics:

Installs (30 days)
mailspring 49
Installs (90 days)
mailspring 173
Installs (365 days)
mailspring 878
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