Proton Mail is a Windows program for sending and receiving encrypted emails. Personal connection logs, metadata and IP addresses are not stored on the server, ensuring complete privacy and anonymity. There is a web application as well as mobile versions for iOS and Android. Paid customers can install a plugin for several popular desktop clients like Microsoft Outlook, Mozilla Thunderbird or Apple Mail.

Security

The main focus of this utility is maintaining privacy by protecting all incoming and outgoing emails with modern end-to-end encryption algorithms. This means that only you and intended recipients can access the messages. Embedded security methods are regularly audited by independent experts for additional transparency of the service.

It is recommended to use this app together with ProtonVPN or another similar traffic rerouting software for adding an extra protection layer.

Included functions

The web interface resembles popular email clients like Outlook and Gmail. There are the following default folders: Inbox, Drafts, Sent, Stared, Archive, Spam and Trash. Users can create and manage the contact list. It is possible to assign custom labels to messages for easier navigation.

Features

free to download and use;
lets you send and receive encrypted emails;
it is possible to assign personal labels to messages;
allows users to maintain complete anonymity and privacy;
there are instruments for creating and managing the list of contacts;
integrated security algorithms are regularly audited by independent experts;
compatible with all modern versions of Windows.