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.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
GZip compression was added for the quarantine
feature. Some code was not included correctly,
according to BZip2/GZ library presence. The
quarantine file name is composed differently so it
can be sorted easily.
Fdatasync is not portable on some platforms (like
FreeBSD), so it was adapted according to platform.
The quarantine filename was not unique, so a
timestamp has been appended to it. An access test
is now performed on the quarantine folder before
enabling the feature. The complete filename of the
quarantined message is logged.