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Open source email service with a strong focus on security and privacy
Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security.
Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.
conjoon is a webmail client with personal information management ambitions. It runs completely in a web browser and features a broad range of functionality known from desktop applications; it provides functionality for organizing RSS feeds, Twitter and Email accounts. It comes with an installation wizard that helps with installing and updating the application. Built using Zend Framework and Ext JS, it focuses on easy system integration and usability on the client side.
OpenJean is a cross-platform, extensible, personal information manager. It includes: file manager, RSS aggregator, calendar and appointments diary, mailer, image manager, multimedia manager, favorites, notes, tasks, anniversaries, topics and address book
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This is a webmail server intended for personal use (though of course, commercial use is not forbidden, it's just not my focus with this project) using secure http. Since it has its own https server built in, it does not require complex configuration.
CollabOffice is a web based Personal Information Manager (PIM) which allows teams to share and work together. It provides email, documents, calendar, contacts, instant messaging, news (nntp), and online web based administration.
A Full Featured E-Mail client with support for SMTP, POP3, Full IMAP, LDAP support for a global address book (anonymous and authenticated) unlimited private address books, todo lists, a personal calendar, spell checking support.
Portable opensource e-mail client and Personal Information Manager written for the Unices and Linux. Our goal is to support various mail servers including Exchange Server, POP3, IMAP4, etc., eventually having the functionality of MS Outlook.