Archive a lifetime of email and chat. Offline search, analytics
Notifuse is an open-source & modern emailing platform
Google Mail registration
High performance, self-hosted, newsletter and mailing list manager
Anti-Spam SMTP Proxy Server implements multiple spam filters
The Next Generation Mail Transport Class.
OpenXP 5 - a multi-protocol offline mail and news reader
Anti Spam SMTP Gateway
Open source auto dialer for voice, fax and SMS campaigns
Open source Fax server software for inbound / outbound internet Faxing
Simple, modern & fast web-based email client
software for email automation (newsletters, transaction mails, etc.)
Guest WIFI and SMS Marketing Kiosk System
Python API for Sendmail Milters.
Simple, modern & fast web-based email client
Multi-protocol server written in Java
Multi user address book application accessable through the web.
Ream-C is a console-based full screen mail client
Business webmail modular application with mobile client
Multiple account (or label) Gmail notifier (without storing passwords)