OpenEMM

OpenEMM is a feature-rich enterprise software for e-mail marketing, newsletters and service mails (transaction mails and event or time triggered mails). OpenEMM offers sophisticated bounce management, link tracking, lots of realtime statistics, a CMS module and a scripting feature to implement individual tasks.

License: CPAL
Written in: Java (Frontend) and Python (Backend)
Operating system: Cross-platform

Website: http://www.openemm.org/
Download: http://www.openemm.org/downloads.html
Documentation: http://www.openemm.org/wiki/OpenEMM_Wiki_Home