Mailfence is a secure and private email service that provides end-to-end encryption, digital signatures, and OpenPGP compatibility. It offers browser-based email access with no plugins required, as well as POP3, IMAP, and SMTP support. Mailfence encrypts emails in the browser, ensuring that no one, including the service provider, can read the contents. The service is built on a secured infrastructure and operates under Belgian privacy protection laws.