SmartPost is a complete email platform based on Davide Libenzi's xmail. It has Web interfaces for adding and managing email domains, for postmasters to manage their email users, and for users to send and receive email.
SmartPost project new page is here
Don't use the old version, try the new SmartPost.
A tool for securing DNS communications between a client and a DNS resolver.
A polyhedral extraction tool (PET).