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 .
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- GnuPG
- Thunderbird
- SeaMonkey




Mailvelope is described as 'Browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard' and is a file encryption software in the security & privacy category. There are six alternatives to Mailvelope for a variety of platforms, including Mac, Windows, Linux, Google Chrome and Thunderbird apps. The best Mailvelope alternative is Enigmail, which is both free and Open Source. Other great apps like Mailvelope are FlowCrypt, WebPG, GPGMail and Secure Exchanges.
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 .




FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted.








GPGMail is a PGP plugin for Apple Mail. It brings the functionality to sign, verify, encrypt and decrypt mails using the OpenPGP standard.
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.

modusGate is a multi-layer anti-spam email filtering gateway that incorporates state of the art AI to effectively identify threats by reputation and advanced statistical models. It provides a leading defense against phishing and malware threats.