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: 2.11.1

Requirements: macOS >= 10.15

Versions:

Intel tahoe 2.11.1
sequoia 2.11.1
sonoma 2.11.1
ventura 2.11.1
monterey 2.11.1
big sur 2.11.1
catalina 2.11.1

Analytics:

Installs (30 days)
deltachat 59
Installs (90 days)
deltachat 223
Installs (365 days)
deltachat 613