fastmail

Install command: 
brew install --cask fastmail

Name: Fastmail

Email client

https://www.fastmail.com/

Development: Pull requests

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

Cask code: fastmail.rb on GitHub

Current version: 1.0.9

Requirements: macOS >= 12

Versions:

Intel tahoe 1.0.9
sequoia 1.0.9
sonoma 1.0.9
ventura 1.0.9
monterey 1.0.9

Analytics:

Installs (30 days)
fastmail 121
Installs (90 days)
fastmail 349
Installs (365 days)
fastmail 789