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.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.