[tyfon]

I have a lot of issues with google apps for business. Sometimes I have to refresh the browser 5-6 times before it will display any email in the primary inbox as well.

It's just horrible to use in firefox (in arch linux) and I'm currently looking for a new provider.

I might just go all in and use protonmail.

[omnimus]

Protonmail is great but doesnt offer custom domains. If you need domains people mostly mention fastmail but i think there are far better choices like mailbox.org and kolabnow. Mailbox does not look like much from their homepage but it has awesome web client and it extremly reliable private provider thats in bussiness from 90s. I had account there for last 5 years without single problem.

[protonmail]

This is actually not quite right, we have offered custom domain support since 2016 :)

https://protonmail.com/support/knowledge-base/custom-domain-...