Freshmeat page: http://freshmeat.net/projects/mailmanager/
MailManager is designed to help teams deal with large volumes of email going to organizational addresses such as firstname.lastname@example.org or email@example.com
Service levels can be set and then performance can be measured against these SLAs. There are also tools to make it easier to deal with mail quickly including a respository of standard attachments and reply templates.
There is an assignment engine that will either assign incoming mail on a round robin basis or based on who the customer is.
MailManager is based on Python & Zope and requires either PostgreSQL or MySQL.
There are screen shots here.
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
Keep up with the latest Advogato features by reading the Advogato status blog.
If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!