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Sfletter Alternatives

Sfletter is described as 'com protects your message and attachments by one click. Email protection from interception and unauthorized actions of the recipient' and is an app in the security & privacy category. There are more than 10 alternatives to Sfletter for a variety of platforms, including Online / Web-based, Windows, Linux, Mac and Android. The best alternative is Tutanota, which is both free and Open Source. Other great apps like Sfletter are Mailbox.org, Shazzlemail, Lockbin and Runbox.

Sfletter alternatives are mainly WebMail Providers but may also be Email Clients or Calendar Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Sfletter.
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  • Free PersonalProprietary
  • Windows

Sfletter.com protects your message and attachments by one click. Email protection from interception and unauthorized...

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  1. Tutanota icon

    Tutanota

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • F-Droid
    75 alternatives to Tutanota 

    Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps. The Android app is published on F-Droid (which means the app does not use Google's push notification system) making it a great option if you...

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    Features
    1.  Privacy focusedTutanota is considered a privacy friendly alternative.
    2.  End-to-End EncryptionTutanota has E2E Encryption, for entire or parts of the app.
    3.  Dark ModeTutanota supports dark mode for comfortable usage in low light conditions.
    4.  Multiple Account supportTutanota support multiple accounts without the need to logout and login
    5.  LightweightTutanota consumes less device resources compared to similar apps.
    6.  Email OrganizerTutanota allows you to take control of your inbox by filtering and control tools.
    7.  Support for AliasesTutanota supports aliases, so you can receive email without exposing your main email address
    8.  Ad-freeTutanota doesn't contain any form of external advertising.
    9.  Calendar IntegrationTutanota lets you sync your tasks and events with your calendar application.
    Mail View
    Calendar View
  2. Mailbox.org icon

    Mailbox.org

    69 alternatives to Mailbox.org 

    Mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.

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    Features
    1.  Privacy focusedMailbox.org is considered a privacy friendly alternative.
    2.  PGP EncryptionMailbox.org supports PGP, an encryption system used for sending encrypted emails and files.
    3.  Two-factor AuthenticationMailbox.org supports two-factor authentication (2FA).
    4.  Ad-freeMailbox.org doesn't contain any form of external advertising.
    5.  GPG EncryptionMailbox.org supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
    6.  Support for AliasesMailbox.org supports aliases, so you can receive email without exposing your main email address
    7.  Self Destructing MessagesMailbox.org supports the use of private messages that will be auto deleted according to a specified time or action.
    Inbox with tabs
    Online office shortcut menu


  3. Shazzlemail icon

    Shazzlemail

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    27 alternatives to Shazzlemail 

    ShazzleMail is the first privacy-protective and surveillance-resistant secure email service. ShazzleMail doesn’t travel the web, but delivers mail directly from your smartphone. No server copies, no open access to NSA, and no big business data mining.

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    Features
    1.  Self Destructing MessagesShazzlemail supports the use of private messages that will be auto deleted according to a specified time or action.
      Screenshot
    • Lockbin icon

      Lockbin

      • Mac
      • Windows
      • Linux
      • Android
      • Android Tablet
      37 alternatives to Lockbin 

      Lockbin is a web application for sending private email messages and files. People use it to send things like credit card numbers or confidential information.

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      Features
      1.  End-to-End EncryptionLockbin has E2E Encryption, for entire or parts of the app.
    • Runbox icon

      Runbox

      • Online
      • OpenPGP
      51 alternatives to Runbox 

      Runbox offers email hosting, domain hosting, and web hosting services, as well as custom-made email solutions

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      Features
      1.  Two-factor AuthenticationRunbox supports two-factor authentication (2FA).
      2.  PGP EncryptionRunbox supports PGP, an encryption system used for sending encrypted emails and files.
      Webmail
      Access


    • SCRYPTmail icon

      SCRYPTmail

      42 alternatives to SCRYPTmail 

      SCRYPTmail is true end-to-end encrypted email service. Email and meta data, i.e sender / recipient are encrypted when you communicate within scryptmail domain.

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      Features
      1.  End-to-End EncryptionSCRYPTmail has E2E Encryption, for entire or parts of the app.
      Full HTML Support
      Compose Beautiful HTML Emails
    • Encipher.it icon

      Encipher.it

      • FreeOpen Source
      • Windows
      • Linux
      • Online
      • Google Chrome
      25 alternatives to Encipher.it 

      Encrypting email with Encipher.it is a simple way to protect your sensitive data. You can encrypt emails or text messages and only the recipient can decrypt it with correct password. Encipher.it integrated with Gmail and many other web applications.

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      Features
      Screenshot
    • Beeble icon

      Beeble

      • Mac
      • Windows
      • Linux
      • Online
      • Chrome OS
      69 alternatives to Beeble 

      The Beeble Project is email and online cloud storage platform with unprecedented security and privacy without third party access.

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      Features
      1.  Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
      Start
      beeble
    • EveryCloud icon

      EveryCloud

      • Online
      15 alternatives to EveryCloud 

      EveryCloud’s cloud based spam filtering service blocks 99.99% of spam, viruses and even newsletters if required. Set spam reports to give users control and view 90 days logs of all inbound and outbound email.

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      Features
      1.  Spam FilterEveryCloud can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
      Using our powerful cloud based spam filtering service you can block 99.99% of spam, viruses and even newsletters (optional) in the cloud before they reach your network, whilst taking control of your business mail. Leave your email entirely secure and free up thousands of business hours for your workforce.
      Protect your organisation against email loss, by activating EveryCloud Email Continuity. In the event of server failure or a power outage, you can restore up to 90 days worth of historical email to the powerful web mail interface or to your emergency mail boxes. Your staff can continue to work with both new emails sent during the outage and the previous three months of historic email
    • Secure Exchanges icon

      Secure Exchanges

      • Mac
      • Windows
      • Linux
      • NuGet
      • Microsoft Office Outlook
      • .NET Framework
      • Context Chrome Extension
      • Software as a Service (SaaS)
      • Gmail
      25 alternatives to Secure Exchanges 

      Secure Exchanges is a SaaS that enables point-to-point encrypted email exchange without the recipient having to install anything. It allows you to send emails and files up to 2.5 G. It also allows you to receive information.

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      Features
      1.  End-to-End EncryptionSecure Exchanges has E2E Encryption, for entire or parts of the app.
      2.  Self Destructing MessagesSecure Exchanges supports the use of private messages that will be auto deleted according to a specified time or action.
      Screenshot
    Showing 10 of 12 alternatives
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