polymail

Install command: 
brew install --cask polymail

Name: Polymail

https://polymail.io/

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

Cask code on GitHub

Current version: 2.2.6

Analytics:

Installs (30 days)
polymail 4
Installs (90 days)
polymail 16
Installs (365 days)
polymail 94
Fork me on GitHub