[kspy]

I've been using Spark for quite a while now and enjoy it https://sparkmailapp.com/

[perishabledave]

Spark is by far my favorite email app. Unfortunately, I’m a bit weary of using it because they get access to all my emails. I know they use it for push notifications, but I still have to blindly trust that they won’t over reach.

[guhan_ganesh]

Same here. Spark is an excellent mail client for Mac. But I do not like Spark mobile app's UI. It is not as clean as the Mac App.