Alternatives to Sfletter for all platforms with any license

Platforms

Show 13 less popular platforms
  • EveryCloud icon

    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...

    Commercial Web / Cloud

    No features added Add a feature
  • Lockbin icon

    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.

    Freemium Mac Windows Linux Android Android Tablet

    No features added Add a feature
  • runbox icon

    runbox

    Runbox provides secure email communication with Perfect Forward Secrecy SSL connections, Extended Validation, and options for PGP encryption. We are committed to...

    Commercial Web / Cloud

    No features added Add a feature
  • Walnut Secure Email icon

    Walnut Secure Email

    Walnut Secure Email is P2P, person to person or end to end secure mail application that protects all of end-user existing accounts, including Gmail, Yahoo Mail...

    Commercial Windows Linux Android iPhone Blackberry ... Android Tablet iPad

  • Sendinc icon

    Sendinc

    Secure email made simple Sendinc enables anyone to send and receive military-grade encrypted email in minutes and requires no special technical expertise. There is...

    Commercial Web / Cloud

    No features added Add a feature
  • Encipher.it icon

    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...

    Free Web / Cloud

    No features added Add a feature
  • oneshar.es icon

    oneshar.es

    Sending confidential information such as passwords, account information and other sensitive data in emails and IM is not necessarily safe. That data is typically stored...

    Free Web / Cloud Windows Mobile Android iPhone HP webOS ... Firefox OS

    • Discontinued The official website is no longer accessible and the iPhone app has been removed from the App Store.
  • Shazzlemail icon

    Shazzlemail

    ShazzleMail is the first privacy-protective and surveillance-resistant secure email service.

    Free Personal Mac Windows Linux Android iPhone

    No features added Add a feature
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Sfletter Comments

Perfect for PDF protection

Comment by StarAndrey
about Sfletter Mar 2015

I use it to protect my PDF files against leakage

Reply