deltachat

Install command: 
brew install --cask deltachat

Name: DeltaChat

Chat via the e-mail server network

https://delta.chat/

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

Cask code: deltachat.rb on GitHub

Current version: 2.10.0

Current version requires: macOS >= 10.15

Versions:

Intel tahoe 2.10.0
sequoia 2.10.0
sonoma 2.10.0
ventura 2.10.0
monterey 2.10.0
big sur 2.10.0
catalina 2.10.0

Analytics:

Installs (30 days)
deltachat 92
Installs (90 days)
deltachat 204
Installs (365 days)
deltachat 582