There is a new tool available for Sparkers: Rambox Community Edition

What is Rambox?

Free and Open Source messaging and emailing app that combines common web applications into one.

Installation:
sudo apt update
sudo apt install rambox

or via Sparky APTus + Sparky APTus Extra >= 0.2.11

Rambox

The Rambox GitHub project page: github.com/ramboxapp/community-edition