Posteo AlternativesTop WebMail Providers & Email Clients like Posteo

Posteo is described as 'Web- and IMAP-based email service. 2GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used' and is a popular webmail provider in the office & productivity category. There are more than 50 alternatives to Posteo, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet apps. The best Posteo alternative is Proton Mail, which is both free and Open Source. Other great sites and apps similar to Posteo are Gmail, Tuta Mail, Disroot and Outlook.com.

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

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Posteo alternatives page was last updated Apr 19, 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

     938 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 Posteo

     
    Comments about Proton Mail as an Alternative to Posteo
    Guest
    Positive Oct 26, 2017
    6

    Protonmail, like posteo, is security based email.

    Editors Review
    Positive May 27, 2021
    0

    Posteo is amazing and the best private email service with great features, but you have to pay for it. ProtonMail offers free encrypted webmail.

    Posteo Icon
    Proton Mail icon

    • Almost everyone thinks Proton Mail is a great Posteo alternative.

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

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

    • Proton Mail is Freemium and Open SourcePosteo is Paid and Proprietary
    • Proton Mail is Privacy focusedPosteo is not according to our users
  4. Gmail icon

    Gmail

     3197 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.

    78 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 Posteo

     
    Comments about Gmail as an Alternative to Posteo
    Top Negative Comment
    Guest
    Apr 3, 2018
    20

    Not private and secure, Google spies on you.

    Most Recent Comment
    Editors Review
    Negative May 27, 2021
    1

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

    Guest
    Negative Mar 25, 2020
    3

    no e2e, no privacy, just some security. but its free yeee

    Show more comments
    3 of 6 comments
    Posteo Icon
    Gmail icon

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

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

    • Gmail is Free and ProprietaryPosteo 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

     487 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 Posteo

     
  7. Disroot icon

    Disroot

     109 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 Posteo

     
  8. Outlook.com icon

    Outlook.com

     397 likes
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    Outlook.com, part of Office Online (not to be confused with Microsoft Outlook ), is a webmail service from Microsoft, successor of Hotmail.

    71 Outlook.com alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • US flagUnited States

    Platforms

    • Online
    • Chrome OS
    Outlook.com screenshot 1

    Top Outlook.com Features

    1.  Support for Aliases
    2.  Mail Filtering
    3.  Calendar Integration
    4.  Multiple Account support
    5.  Spam Filter
    6.  Extensible by Plugins/Extensions
    7.  File Tagging
    8.  Dark Mode
    9.  Two-factor Authentication
    10.  IMAP Support
    11. Skype icon  Skype integration
    12.  File Organizer

    Outlook.com VS Posteo

     
    Comments about Outlook.com as an Alternative to Posteo
    Editors Review
    Negative May 27, 2021
    0

    Posteo offers encrypted email. Outlook.com does not. This is a fundamental difference in services. In one (posteo), your email is private. In the order (outlook) your email is scanned, saved, then crunched by artificial intelligence to be used to manipulate you.

    Guest
    Negative Oct 29, 2019
    2

    Outlook.com is run of the mill US based e-mail provider, it does not provide secure e-mail services like Posteo.

    Posteo Icon
    Outlook.com icon

    • This alternative is disputed. Outlook.com is a legitimate Posteo alternative, but it might have issues that some users think are important.

    • Outlook.com is Freemium and ProprietaryPosteo is Paid and Proprietary
  10. Mailbox.org icon

    Mailbox.org

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

    License model

    Application types

    Country of Origin

    • DE flagGermany
    • European Union flagEU

    Platforms

    • Online
    Dashboard online office. Powered by Open-Xchange

    Properties

    1.  Privacy focused

    Features

    1.  Custom Domain
    2.  Encrypted Email
    3.  Built-in Calendar
    4.  Calendar Integration
    5.  Two-factor Authentication
    6.  No Tracking
    7.  Spam Filter
    8.  PGP Encryption
    9.  Dark Mode
    10.  Calendar View
    11.  Ad-free
    12.  GPG Encryption

    Mailbox.org VS Posteo

     
    Comments about Mailbox.org as an Alternative to Posteo
    Guest
    Negative Mar 25, 2020
    -3

    mailbox.org is much less focused on privacy than posteo is. proton would be a better alternative even if theres no IMAP.

    Posteo Icon
    Mailbox.org icon

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

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

    • Mailbox.org is Paid and ProprietaryPosteo is also Paid and Proprietary
    • Mailbox.org is Privacy focusedPosteo is not according to our users
  11. Zoho Mail icon

    Zoho Mail

     118 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.

    107 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 Posteo

     
  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 Posteo

     
  13. 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.

    59 Mailpile alternatives

    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 Posteo

     
    Comments about Mailpile as an Alternative to Posteo
    Guest
    Negative Sep 24, 2017
    1

    Mailpile is not an email service/provider

    Posteo Icon
    Mailpile icon

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

    • Mailpile is Free and Open SourcePosteo is Paid and Proprietary
  14. Fastmail icon

    Fastmail

     71 likes
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    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.

    72 Fastmail alternatives

    License model

    Application types

    Country of Origin

    • AU flagAustralia

    Platforms

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

    Properties

    1.  Privacy focused

    Features

    1.  Support for Aliases
    2.  Ad-free
    3.  Full-Text Search
    4.  Two-factor Authentication
    5.  Email Organizer
    6.  Reminders
    7.  No Tracking
    8.  Spam Filter
    9.  Calendar Integration
    10.  Calendar View
    11.  Mail Filtering
    12.  Integrated Spam Protection

    Fastmail VS Posteo

     
  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 Posteo

     
  16. Mailo icon

    Mailo

     23 likes
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    The mail service which respects you.

    82 Mailo alternatives

    License model

    • Freemium • Proprietary

    Application types

    Country of Origin

    • FR flagFrance
    • European Union flagEU

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • OpenPGP
    Mobile

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  IMAP Support
    2.  PGP Encryption
    3.  POP3 Support
    4.  Cloud Sync
    5.  No Tracking
    6.  GPG Encryption
    7.  Calendar Integration
    8.  Spam Filter
    9.  Ad-free
    10.  End-to-End Encryption
    11.  Two-factor Authentication
    12.  Mail Filtering

    Mailo VS Posteo

     
13 of 74 Posteo alternatives