list2db reads digested email files generated by the mailman mailing list software and converts them into SQL for a relational database. The project also includes a PHP frontend for users to search and browse archived list emails.
Soogle is a web search service proxying between Google Desktop Search(GDS) and the internet users. While GDS lets you search your own computer, Soogle is able to have your intranet users search the shared emails, files, media and chats remotely.