SIGAINT is described as 'Darknet email service that allows you to send and receive email without revealing your location or identity' and is a webmail provider in the security & privacy category. There are more than 10 alternatives to SIGAINT, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Android apps. The best SIGAINT alternative is Proton Mail, which is both free and Open Source. Other great sites and apps similar to SIGAINT are Tuta Mail, Vivaldi Mail, Enigmail and Kolab Now.
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.
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.
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...
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 .
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
OnionMail is an anonymous and encrypted mail server made to run on the TOR network without losing the ability to communicate with the Internet.
High security web-based e-mail system which extends considerably the email system to much more than currently exists.
MASV is a cloud-based intelligent managed file transfer (IMFT) designed to orchestrate global file movement in cloud, on-prem, and hybrid workflows.
Switzerland
Germany
EU
Norway
United States
South Africa
Crystal clear reason: Tutanota DO NOT allow Tor browser, tried several times to open an account. Zero success.