it's what I've been using for the past 3 years since i switched to Linux
This is good but it eats up to much ram and cpu. I can only my workstation with xeon and 16 GB ram and it runs without any problems. But on systems with slow cpu and low ram it's better to user Webb apps and select firefox when possible, it uses much less cpu and ram.
A Franz fork with more options. It has compatibility with several email messaging systems, social network clients and social media dashboard app. It is a good alternative to Rambox.