Self-Hosted Proton Mail Alternatives

Proton Mail is not available as a self-hosted solution but there are a few alternatives for power users and business that want to host a solution on-premise. The best Self-Hosted alternative is LuxSci. It's not free, so if you're looking for a free alternative, you could try Forward Email or Zero Email. If that doesn't suit you, our users have ranked more than 50 alternatives to Proton Mail and four of them are available as a self-hosted solution so hopefully you can find a suitable replacement.

filter to find the best alternatives

Proton Mail alternatives are mainly WebMail Providers Other popular filters include Free, Open Source and Self-Hosted. These are just examples - use the filter bar below to find more specific alternatives to Proton Mail.
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Alternatives list

  1. LuxSci icon
     1 like
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    Providing HIPAA-compliant email, secure email & web services since 1999. Secure communications via email, text, chat, video, and web.

    Cost / License

    • Subscription
    • Proprietary

    Platforms

    • Mac
    • Windows
    • Online
    • Self-Hosted
     
    • LuxSci is the most popular Self-Hosted alternative to Proton Mail.

    • LuxSci is Paid and ProprietaryProton Mail is Freemium and Open Source
  2. Forward Email icon
     5 likes
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    Forward Email is the best email service, encrypted email service, and fastest email service. It supports unlimited domains and aliases for no extra cost. It uses quantum safe ChaCha20-Poly1305 encryption and offers SMTP, IMAP, POP3, email webhooks, email regular expressions...

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • Online
     
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    1
    Comments about Forward Email as an Alternative to Proton Mail
    linuxplayer
    Negative
    1

    Needs an existing email to be used for free. You have to pay to create an email.

    Proton Mail Icon
    Forward Email icon
    • Forward Email is Freemium and Open SourceProton Mail is also Freemium and Open Source
  3. Zero Email icon
     4 likes
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    Zero is an open-source AI email solution that gives users the power to self-host their own email app while also integrating external services like Gmail and other email providers. Our goal is to modernize and improve emails through AI agents to truly modernize emails.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Self-Hosted
    • Docker
     
  4.  8 likes
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    Self-hosted server for the Proton Mail client.

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Online
    • Self-Hosted
     
4 of 4 Proton Mail alternatives