Speaking of drawbacks of posteo, the lack of DMARC/ARC is one. On the plus side they have an option to encrypt your entire mailbox, separately from PGP auto-encryption for incoming emails.

Mailbox.org looks like all round decent email provider in my experience.

There is ProtonMail and Tutanota but they lack IMAP support (without bridge in ProtonMail case).

Skiff looks interesting but I haven't used it yet.

    Has anyone experienced issues with Tutanota not loading behind a VPN? Yesterday I was unable to access their website while connected to ProtonVPN Plus servers. I tried several ones, some were blocked some weren't, and I'm very certain that I didn't have an issue on my network. The app also wouldn't fetch emails behind these servers.

    I messaged support and they replied that it's possible the servers were blocked, and also implied that they don't control the blocking of IP addresses for their domain.
    I never experienced this with Proton Mail (using Mullvad).

    • [deleted]

    I vote for mailbox.org.

    • They allow you to sign up anonymously, although fall short of Posteo who calculate the correct value-added tax for the relevant EU country through Geo-IP but (unlike mailbox.org) do not save the result.

    • Provide in-house disposable aliases at @temp.mailbox.org domain. These are real fixture in my life. I use them daily for everything. I only wish I could send from them as well as reply to, but we can't have everything we want.

    • @secure.mailbox.org alias that will force TLS. Great for sensitive back-and-forth with a person, but terrible for online portals and booking system the way they envision it.

    • Optional encrypted mailbox for those that care. If I did I'd use Proton or Tutanota.

    The downsides are their funky 2FA, no app passwords and no proper Login Log (à la Fastmail or Proton).

      • [deleted]

      • Edited

      applesbana They support open standards so any IMAP client will do. I myself don't host email on my phone outside of occasional week or two where I might need it. FairMail worked well when I did, but I'm looking forward to further K-9 improvements which will eventually become Thunderbird for Android. CanaryMail looks great but was too 'smart' for my liking and I constantly felt being upsold to (it's VC-backed).

      That said, mailbox.org webmail is responsive and I access it from my Pixel weekly if not daily.

      All right, I received a reply from Tutanota support on the topic of VPNs:

      We generally do not block VPN connections regardless of the provider. However certain IP addresses might be blocked temporarily whenever we detect misuse or mass signups. This is an automatic process, handled by our system and the block is not permanent. Unfortunately I cannot provide more details on this.

      Please change the exit IP of your connections if the issue still persists.

      Apparently the VPN exit server my router/firewall is set to is notoriously used by spammers, because I'm getting blocked again. Funnily enough I have no issues using Tutanota through Tor.

        • [deleted]

        Relaks So you use a vpn for your privacy and end up with the same IP as spammers...

          [deleted] Right, that comes as a surprise to no one. Some VPN providers (like Proton) have notoriously bad IP reputation. The info on Tutanota blocking them will be relevant to some users who are considering the service.

          a year later

          Hey everyone, I just discovered this community, I never think this topic is discussed in grapheneos community.

          In the end of 2024, I am asking again the same topic.

          Which is the most privacy focused email provider now?

          My requirements are --

          • Privacy first, end to end encryption, zero knowledge every good encryption feature must have .

          • Don't require other services along with mail services like Proton.

          • Prefer official app over email clients so IMAP isn't necessary that much if official app available. BTW, **Between K9mail and FairelEmail which one is more privacy focused? **

          • Email aliases are good to have.

          • Last but not the least, have a good reputation of the company. Proton is good, I don't blame them.

          I think I am too late for asking this questions but I am new in these fields.

            anonymous_homan sounds like you would like tuta.com as they check all your boxes and what's annoying about them for some doesn't concern you (no IMAP support, no app-ecosystem etc).