AOL Mail (Aol Mail) is a free web-based email service.

Autistici / Inventati provides activists, groups and collectives with platforms for a freer communication and digital tools for privacy self-defence.

Gmail is Google's email platform which is free for personal use. It is currently one of the most popular and widely used email platform which as clients for a…

Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service.

Mailfence is a web-based email service that offers OpenPGP based end-to-end encryption and digital signatures.

Outlook.com is a free personal email service from Microsoft.

Apple Mail is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc.

FastMail is an email service offering paid email accounts for individuals and organizations.

GMX Free Webmail is the Free Email.

Kolab Now is a web-based email and groupware service, based completely on free and open-source software.

OpenProject is a web-based project management system for location-independent team collaboration.

Polymail is an email application for OS X and iOS known for its clean interface and additional features atop the Gmail platform.