polymail

Install command: 
brew install --cask polymail

Name: Polymail

Email productivity application

https://polymail.io/

Cask JSON API: /api/cask/polymail.json

Cask code: polymail.rb on GitHub

Current version: 2.4.3002

Requirements: macOS >= 10.15

Versions:

Intel tahoe 2.4.3002
sequoia 2.4.3002
sonoma 2.4.3002
ventura 2.4.3002
monterey 2.4.3002
big sur 2.4.3002
catalina 2.4.3002

Analytics:

Installs (30 days)
polymail 4
Installs (90 days)
polymail 10
Installs (365 days)
polymail 41