ClamCour is a multi-threaded Courier filter that allows Clam Antivirus to scan incoming mail for viruses, and rejects it if the check is positive. Attachments can be "quarantined", and custom domain-based email reports can be sent.
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.