Mailbox.org AlternativesTop WebMail Providers & Email Clients like Mailbox.org

Mailbox.org is described as 'E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD)' and is a popular webmail provider in the office & productivity category. There are more than 50 alternatives to Mailbox.org, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Mac apps. The best Mailbox.org alternative is Proton Mail, which is both free and Open Source. Other great sites and apps similar to Mailbox.org are Gmail, Tuta Mail, Disroot and Posteo.

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

More about Mailbox.org
More about Mailbox.org
Mailbox.org alternatives page was last updated Apr 7, 2025
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  1. Mailfence icon

    Mailfence

    Sponsored

    This secure email platform offers end-to-end encryption, a comprehensive suite with Calendar and Documents. Mailfence is inter-operable with OpenPGP services, features digital signatures, provides keystores, and available as a PWA for mobile independence while ensuring no ads, trackers, or surveillance.

    71 Mailfence alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • BE flagBelgium
    • European Union flagEU

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Mailfence screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Calendar Integration
    2.  POP3 Support
    3.  IMAP Support
    4.  Ad-free
    5.  Encrypted Email
    6.  OpenPGP
    7.  Mail Filtering
    8.  PGP Encryption
    9.  AES-256 Encryption
    10.  No Tracking
    11.  Two-factor Authentication
    12.  End-to-End Encryption
  2. Proton Mail icon

    Proton Mail

     933 likes
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    Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.

    99 Proton Mail alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • CH flagSwitzerland

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Tor
    Proton Mail screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  End-to-End Encryption
    2.  Encrypted Email
    3.  Ad-free
    4.  Two-factor Authentication
    5.  Mobile friendly
    6.  No Tracking
    7.  Custom Domain
    8.  Dark Mode
    9.  PGP Encryption
    10.  Anonymous Email
    11.  Filters
    12.  Self Destructing Messages

    Proton Mail VS Mailbox.org

     
    Comments about Proton Mail as an Alternative to Mailbox.org
    Risei
    Positive •Feb 18, 2020
    4

    Protonmail is a solid provider if you want good privacy on your email, however it does not have IMAP support, and no Calendar support either. It's a very basic but solid email service with good privacy.

    Mailbox.org Icon
    Proton Mail icon

    • Almost everyone thinks Proton Mail is a great Mailbox.org alternative.

    • Proton Mail is the most popular Web-based, Windows, Android & Mac alternative to Mailbox.org.

    • Proton Mail is the most popular Open Source & free alternative to Mailbox.org.

    • Proton Mail is Freemium and Open SourceMailbox.org is Paid and Proprietary
    • Proton Mail is Privacy focusedMailbox.org is not according to our users
  4. Gmail icon

    Gmail

     3198 likes
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    Gmail offers robust spam blocking, undo send, Google Chat for collaboration, Spaces for organizing projects, Google Meet video calls, Smart Reply, threaded conversations, and swift notifications, seamlessly integrating with Google Workspace for a comprehensive email experience.

    79 Gmail alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Google Chrome
    • Android Wear
    • Android TV
    • Software as a Service (SaaS)
    Gmail screenshot 1
    Gmail screenshot 2
    Gmail screenshot 3

    Top Gmail Features

    1.  Integrated Search
    2.  Integrated Chat
    3.  Multiple Account support
    4.  Mail Server
    5.  Basic html mode
    6.  Custom Backgrounds
    7.  Email Organizer
    8.  Works Offline
    9.  Mail Filtering
    10.  Unified inbox
    11. IFTTT icon  IFTTT Integration
    12.  Passkey Support

    Gmail VS Mailbox.org

     
    Comments about Gmail as an Alternative to Mailbox.org
    Top Negative Comment
    Guest
    Jun 17, 2017
    14

    There is no privacy with google.

    Most Recent Comment
    Third Opinion
    Negative •Apr 7, 2025
    0

    Imagine your mailman reads every single one of your letters... and tells your neighbours about it... for money.

    Google, without doubt, is evil.

    Editors Review
    Negative •May 27, 2021
    1

    mailbox.org offers encrypted email. Gmail does not. This is a fundamental difference in services. In one (mailbox.org), your email is private. In the order (gmail) your email is scanned, saved, then crunched by artificial intelligence to be used to manipulate you.

    Show more comments
    3 of 5 comments
    Mailbox.org Icon
    Gmail icon

    • This alternative is disputed. Gmail is a legitimate Mailbox.org alternative, but it might have issues that some users think are important.

    • Gmail is the most popular SaaS & Android Tablet alternative to Mailbox.org.

    • Gmail is Free and ProprietaryMailbox.org is Paid and Proprietary
  5. Ad
    Screenshot
    Zoho Mail icon
    Zoho Mail

    Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

    https://www.zoho.com
    Learn More
  6. Tuta Mail icon

    Tuta Mail

     482 likes
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    Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.

    100 Tuta Mail alternatives

    License model

    • Freemium • Open Source

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Flathub
    • F-Droid
    Mail View

    Properties

    1.  Privacy focused
    2.  Lightweight
    3.  Clean design

    Features

    1.  Encrypted Email
    2.  End-to-End Encryption
    3.  Dark Mode
    4.  Custom Domain
    5.  Encrypted calendar
    6.  Contacts
    7.  No Tracking
    8.  Multiple Account support
    9.  Integrated File Sharing
    10.  Ad-free
    11.  Spam Filter
    12.  Email Organizer

    Tuta Mail VS Mailbox.org

     
  7. Disroot icon

    Disroot

     107 likes
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    Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.

    43 Disroot alternatives

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Online
    • F-Droid
    Disroot screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Encrypted Email
    2.  Ad-free
    3.  Can be used outside browser
    4.  Decentralized
    5.  IMAP Support
    6.  No Tracking
    7.  End-to-End Encryption
    8.  Support for Aliases
    9.  European data privacy
    10.  SMTP Support
    11.  Support for SFTP
    12. Nextcloud icon  Nextcloud integration

    Disroot VS Mailbox.org

     
  8. Posteo icon

    Posteo

     79 likes
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    Web- and IMAP-based email service. 2GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.

    73 Posteo alternatives

    License model

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    Drag and drop

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Encrypted mail and contacts
    2.  Encrypted Email
    3.  Calendar Integration
    4.  PGP Encryption
    5.  Two-factor Authentication
    6.  Mail Filtering
    7.  Support for Aliases
    8.  No Tracking
    9.  Ad-free
    10.  Calendar View
    11.  Spam Filter
    12.  End-to-End Encryption

    Posteo VS Mailbox.org

     
    Comments about Posteo as an Alternative to Mailbox.org
    dontaddcheese
    Negative •Mar 31, 2021
    0

    No support for custom domains.

    Mailbox.org Icon
    Posteo icon

    • Most users think Posteo is a great Mailbox.org alternative.

    • Posteo is the most popular commercial alternative to Mailbox.org.

    • Posteo is Paid and ProprietaryMailbox.org is also Paid and Proprietary
    • Posteo is Privacy focusedMailbox.org is not according to our users
  10. Zoho Mail icon

    Zoho Mail

     117 likes
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    Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

    108 Zoho Mail alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • IN flagIndia

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Apple Watch
    • Android Tablet
    All-in-one view

    Properties

    1.  Privacy focused

    Features

    1.  Custom Domain
    2.  Ad-free
    3.  Mail Filtering
    4.  Virtual office
    5.  Two-factor Authentication
    6.  Document Sharing
    7.  Support for Aliases
    8.  Email reminder
    9.  SMTP Support
    10.  Snooze Mail
    11.  POP3 Support
    12.  Integrated Spam Protection

    Zoho Mail VS Mailbox.org

     
  11. Mailpile icon

    Mailpile

     117 likes
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    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.

    License model

    • Free • Open Source

    Application types

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • OpenPGP
    Mailpile screenshot 1
    Discontinued

    The latest release (1.0.0rc6) was released in September 2019.

    Mailpile Features

    1.  OpenPGP
    2.  Web-Based
    3.  Encrypted Email
    4.  IMAP Support
    5.  POP3 Support

    Mailpile VS Mailbox.org

     

    • Mailpile is the most popular Self-Hosted alternative to Mailbox.org.

    • Mailpile is Free and Open SourceMailbox.org is Paid and Proprietary
  12. Mailfence icon

    Mailfence

     59 likes
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    This secure email platform offers end-to-end encryption, a comprehensive suite with Calendar and Documents. Mailfence is inter-operable with OpenPGP services, features digital signatures, provides keystores, and available as a PWA for mobile independence while ensuring no ads, trackers, or surveillance.

    71 Mailfence alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • BE flagBelgium
    • European Union flagEU

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Mailfence screenshot 1

    Properties

    1.  Privacy focused

    Features

    1.  Calendar Integration
    2.  POP3 Support
    3.  IMAP Support
    4.  Ad-free
    5.  Encrypted Email
    6.  OpenPGP
    7.  Mail Filtering
    8.  PGP Encryption
    9.  AES-256 Encryption
    10.  No Tracking
    11.  Two-factor Authentication
    12.  End-to-End Encryption

    Mailfence VS Mailbox.org

     
  13. StartMail icon

    StartMail

     27 likes
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    Privacy-focused email service offering easy one-click PGP encryption, 20 GB storage, disposable email addresses, and compatibility with IMAP/SMTP while adhering to Dutch privacy laws to secure data and communications effectively.

    58 StartMail alternatives

    License model

    Application types

    Country of Origin

    • NL flagNetherlands
    • European Union flagEU

    Platforms

    • Online
    StartMail screenshot 1

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Support for Aliases
    2.  No Tracking
    3.  Email Organizer
    4.  Ad-free
    5.  IMAP Support
    6.  Encrypted Email

    StartMail VS Mailbox.org

     
  14. iCloud icon

    iCloud

     109 likes
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    Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices. iCloud also provides collaborative services for task management and notes and productivity apps for text documents, spreadsheets and presentations.

    103 iCloud alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Mac
    • Windows
    • Online
    • iPhone
    • iPad
    iCloud screenshot 1

    iCloud Features

    1.  Cloud Sync
    2.  End-to-End Encryption
    3.  Shared Folders
    4.  Real time collaboration
    5.  Two-factor Authentication
    6.  Personal Information Manager (PIM)

    iCloud VS Mailbox.org

     
    Comments about iCloud as an Alternative to Mailbox.org
    Guest
    Negative •May 17, 2022
    0

    Mailbox is focused on email privacy. iCloud not.

    Mailbox.org Icon
    iCloud icon
    • iCloud is Freemium and ProprietaryMailbox.org is Paid and Proprietary
  15. Vivaldi Mail icon

    Vivaldi Mail

     33 likes
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    Vivaldi Mail is a free email service with no ads and no strings attached developed by Vivaldi Technologies. It also offers contacts and calendar features, search capabilities, folders management, WEB/POP/IMAP access, 10GB of storage capacity, 20 MB of maximum attachment size...

    99 Vivaldi Mail alternatives

    License model

    • Free • Proprietary

    Application types

    Country of Origin

    • NO flagNorway

    Platforms

    • Online
    • Vivaldi
    Mail

    Properties

    1.  Support for Themes

    Features

    1.  IMAP Support
    2.  Ad-free
    3.  POP3 Support
    4.  PGP Encryption
    5.  Email Organizer
    6.  Mail Filtering
    7.  GPG Encryption
    8.  Two-factor Authentication
    9.  Spam Filter
    10.  Calendar View
    11.  Unified inbox
    12.  Calendar Integration

    Vivaldi Mail VS Mailbox.org

     
  16. Enigmail icon

    Enigmail

     71 likes
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    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .

    License model

    • Free • Open Source

    Application type

    Country of Origin

    • International

    Platforms

    • Mac
    • Windows
    • Linux
    • GnuPG
    • Thunderbird
    • SeaMonkey
    Thunderbird window with Decrypt button

    Enigmail Features

    1.  Encrypted Email

    Enigmail VS Mailbox.org

     
13 of 83 Mailbox.org alternatives