Proton Mail

Proton Mail is a secure email service designed to protect user privacy and data integrity. It offers end-to-end encryption for emails, contacts, and calendar data, ensuring that only the sender and intended recipient can access the content. This encryption is maintained even when data is stored on Proton Mail's servers, which are located in Switzerland, a country known for its strong data protection laws.

One of the key features of Proton Mail is its ability to send encrypted emails to both Proton Mail users and non-users. For recipients who do not use Proton Mail, encrypted messages can be accessed via a secure link, provided they have the shared password. Additionally, Proton Mail allows users to send "self-destructing messages," which automatically delete after a specified time.

The app supports custom domains, allowing businesses to maintain their brand identity while benefiting from Proton Mail's security features. It also includes a feature called Proton Mail Bridge, which enables integration with third-party email clients like Outlook and Apple Mail, though this is available only with premium accounts.

Proton Mail offers mobile apps for Android and iOS, providing a seamless experience across devices. The service is part of the broader Proton ecosystem, which includes Proton Calendar, Proton Drive, and Proton VPN, offering users a comprehensive suite of privacy-focused tools. The open-source nature of Proton Mail's apps ensures transparency and community scrutiny, enhancing the security and trustworthiness of the service.