Protonmail is solid, I've got the free version, you can just test it out to see how you like it first. Take a look at Tutanota also, it's fully encrypted as wel

Protonmail is solid, I've got the free version, you can just test it out to see how you like it first. Take a look at Tutanota also, it's fully encrypted as well. I use it with my domain and couldn't be happier.