SFLetter is described as 'Sfletter.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 nine alternatives to SFLetter for a variety of platforms, including Web-based, Mac, Windows, Linux and Android apps. The best SFLetter alternative is Tuta Mail, which is both free and Open Source. Other great apps like SFLetter are mailbox, Runbox, EveryCloud and Lockbin.
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.
E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD).
Runbox offers email hosting, domain hosting, and web hosting services, as well as custom-made email solutions
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.
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.
The Beeble Project is email and online cloud storage platform with unprecedented security and privacy without third party access.
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 no required software to purchase, download, or install. There are no keys to generate, publish, or maintain. And a.
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.
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 with remnants of the bits in places you don't need it to be.
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