Proton Mail AlternativesOnly apps categorised as Mail Servers

Alternatives list

1. 

   

   mailbox

    77 likes

   E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD).

   90 mailbox alternatives

   Cost / License

   • Paid
   • Proprietary (AGPL-3.0)

   Application typeApplication types

   • WebMail Provider
   • Email Client

   Origin

   • Germany
   • EU

   Platforms

   • Online

   • Germany
   • EU

   

   

   

   +3

   

   More about mailbox  

   

   Good alternative?Is mailbox a good alternative to Proton Mail?

    

   |

   1comment

   ExpandCollapse

   mailbox vs Proton Mail Comments

   Positive comment by John Fastman · Dec 24, 2016

   Mailbox.org is a partial replacement for Protonmail. It offers a fully functional email solution (email, calendar, contacts), but with the added benefits of PGP encryption support (you can handle the keys or let them do it). It also allows you to send links to people who don't use PGP if you want to send private messages. For the encryption, it's a bit like Protonmail. For everything else, it's like a privacy-respecing Gmail alternative.

   1 of 1 comments

   

   

   • mailbox is Paid and ProprietaryProton Mail is Freemium and Open Source
   • mailbox is Security-focusedProton Mail is not according to our users
2. 

   

   Fastmail

    82 likes

   Fastmail offers secure email hosting with comprehensive webmail services, including IMAP, POP, and SMTP protocols. It supports file sharing, shared folders, large mailboxes, instant messaging, and is compatible with popular email programs. Excellent for businesses with compliance features.

   85 Fastmail alternatives

   Cost / License

   • Paid
   • Proprietary

   Application typeApplication types

   • WebMail Provider
   • Mail Server

   Origin

   • Australia

   Platforms

   • Mac
   • Windows
   • Linux
   • Online
   • Android
   • iPhone
   • Android Tablet
   • iPad
   • Flathub
   • Flatpak

   • Australia

   

   

   

   +6

   

   More about Fastmail  

   

   Good alternative?Is Fastmail a good alternative to Proton Mail?

    
4. 

   

   Onion Mail

    6 likes

   Free anonymous email platform offering automatic PGP encryption, dedicated Tor .onion address, strict no-logs policy, no personal data or phone required, and anonymous payments through Monero, Bitcoin, Ethereum, or credit card. Compatible with Tor and web browsers.

   39 Onion Mail alternatives

   Cost / License

   • Freemium
   • Proprietary

   Application typeApplication types

   • WebMail Provider
   • Email Client

   Origin

   • United States

   Platforms

   • Online

   • United States

   

   More about Onion Mail  

   

   Good alternative?Is Onion Mail a good alternative to Proton Mail?

    
5. Ad

   

   

   Fastmail

   Fastmail offers secure email hosting with comprehensive webmail services, including IMAP, POP, and SMTP protocols. It supports file sharing, shared folders, large mailboxes, instant messaging, and is compatible with popular email...

   https://www.fastmail.com

   Learn More
6. 

   

   Purelymail

    5 likes

   Purelymail is an email hosting app that allows users to manage their emails using their preferred email client software or through the app's webmail service, which is powered by Roundcube. The app is compatible with most mail apps, supporting IMAP and POP3 protocols.

   28 Purelymail alternatives

   Cost / License

   • Paid
   • Proprietary

   Application typeApplication types

   • WebMail Provider
   • Email Client

   Origin

   • United States

   Platforms

   • Online
   • Software as a Service (SaaS)

   • United States

   

   More about Purelymail  

   

   Good alternative?Is Purelymail a good alternative to Proton Mail?

    
7. 

   

   Kolab Now

    43 likes

   Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

   Cost / License

   • Paid
   • Open Source

   Application typeApplication types

   • WebMail Provider
   • Mail Server

   Origin

   • Switzerland

   Platforms

   • Online
   • Software as a Service (SaaS)
   • DAVx5

   • Switzerland

   

   

   

   More about Kolab Now  

   

   Good alternative?Is Kolab Now a good alternative to Proton Mail?

    
9. 

   

   SwisMail

    1 like

   Secure Free EMail Service Hosted in Switzerland.

   Cost / License

   • Freemium
   • Open Source

   Application type

   • Mail Server

   Platforms

   • Online
   • Android
   • iPhone

   

   

   

   +1

   

   More about SwisMail  

   

   Good alternative?Is SwisMail a good alternative to Proton Mail?

    
10. 

    

    PEPS

     9 likes

    PEPS is an open source secure email and file sharing platform.

    Cost / License

    • Free
    • Open Source (AGPL-3.0)

    Application type

    • WebMail Provider

    Alerts

    • Discontinued

    Platforms

    • Linux

    

    More about PEPS  

    

    Good alternative?Is PEPS a good alternative to Proton Mail?

     
11. 

    

    Fripost

     6 likes

    Fripost – the Free Email Association. Fripost organize the people who want an alternative to "free" e-mail services where you are constantly under surveillance and personal data is handed over to third parties.

    27 Fripost alternatives

    Cost / License

    • Paid
    • Open Source

    Application typeApplication types

    • WebMail Provider
    • Email Client

    Platforms

    • Online

    

    Good alternative?Is Fripost a good alternative to Proton Mail?