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: 2.35.0

Requirements: macOS >= 12

Versions:

Intel tahoe 2.35.0
sequoia 2.35.0
sonoma 2.35.0
ventura 2.35.0
monterey 2.35.0

Analytics:

Installs (30 days)
deltachat 102
Installs (90 days)
deltachat 244
Installs (365 days)
deltachat 750