Manitou-Mail is a free Qt-based database-driven Mail User Agent with associated scripts. It stores mailboxes and mail messages as structured data, accessible (possibly concurrently) by SQL, in addition to providing common mailer features and some more.
oserp - stands for OpenSource Emailer Replaces Pine. First goal - replace pine with an open souce work-alike using perl. Second - add an SQL backend to Mail::Box, and thus to oserp. Third - Port to C++, using GNU MailUtils as the backend.
NOTE: Development has been aborted. Please see the re-alpine project for a better alternative.
oserp - stands for OpenSource Emailer Replaces Pine. First goal - replace pine with an open souce work-alike using perl. Second - add an SQL backend to Mail::Box, and thus to oserp. Third - Port to C++, using GNU MailUtils as the backend.
AlphaMail is an accelerated web mail interface with a C++ middleware layer that is more effective than an IMAP proxy which is a highly scalable (10k+ users). The interface includes modern features, Section 508 compliance, and universal browser support.
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MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
MailDB adds a database back-end to an IMAP server for features such as "virtual" mail folders (msgs appearing in multiple folders), "view" folders (dynamic results of searches), etc. The DB is inherently multi-user, allowing msg reference counting.
AUC for Education is an GPLed intranet system designed for use in a K-12 setting that provides a web-based environment for students and teachers to interact via "Interactive Classrooms" and other innovative features.
CSCMail is an X/Gtk based MUA. It supports the POP3 protocal and can also read mailspool files/directories. It supports multiple accounts, filters, GPG, MIME, Spellchecking, HTML Mail (view only) and a host of other features.
Gnome-Jupiter is planned to become a MUA supporting multiple POP3-Accounts.
First aim is a stable SMTP/POP3 combination. IMAP is planned for the
future.
Parable is an e-mail client that enhances the user experience in reading and interacting with E-Mail. This application concentrates on user contacts rather than e-mail itself. Parable is the different E-Mail client !