You may want to check Tuta.com .
I have used each and every alternative out there. I would choose Tuta (formerly tutanota) service for privacy and security.
nostr:npub1f6ugxyxkknket3kkdgu4k0fu74vmshawermkj8d06sz6jts9t4kslazcka proton mail: honeypot or not? Know any good alternatives for privacy concerned individuals looking for email services for a custom domain?
You may want to check Tuta.com .
I have used each and every alternative out there. I would choose Tuta (formerly tutanota) service for privacy and security.
1. If you care about privacy don't use Tutanota. They don't care.
https://github.com/tutao/tutanota/issues/528
2. If you care about security. It's more secure to use Gmail with GPG/PGP than using Tutanota.
https://www.dailymail.co.uk/news/article-12759197/Cameron-Ortis-espionage-trial-Tutanota-Canada.html