ProtonMail
ProtonMail is an email service designed for users who prioritize privacy and security in their communications. It features end-to-end encryption and zero-access encryption, ensuring that only the intended recipients can read the messages. This makes ProtonMail particularly suitable for journalists, activists, and anyone dealing with sensitive information. The platform is open-source, which adds an extra layer of transparency and trust. While it may not offer as many features as some competitors, its strong focus on privacy and security makes it a reliable choice for those who value confidentiality in their email interactions. However, users should be aware that the free version has storage and usage limitations.