SMTP email proxy and relay server
Universal server
JobScheduler workload automation to execute jobs and workflows
Download books from the hathitrust website in a fast and easy manner
ERP Server
Strong Email & Apache Log Analysis with Active Security Features
Open Source Client/Server Network Backup System
OpenMAP Suite is a document management suite based on Subversion
Free Syslog Server for Windows with a graphical user interface
Playout Server that can act as a TV Station in a Box
To synch and encrypt all sorts of data across different sources
Kloxo Web Hosting Panel
CRM114 milter for sendmail
QSF milter for sendmail
Simple Lotus Notes mail client
HackerJLY Mail Group Sender - Simple But Powerful