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.
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This release removes useless waits for ending threads on Courier stop, unused mutexes, and stdio APIs on Unix sockets because they are buggy on 64-bit platforms. Thread synchronization is better implemented. Reply on socket happens as soon as possible, thus delaying not-Courier-related tasks. Improved rollback on errors. Improved logging. A check for extra fields in sockaddr_un structure. Bad flags inherited by ClamAv configuration are removed. A FIFO file was added to get external commands. The ClamAV database update task is no longer based on time, but waits for an external command.
The code was completely rewritten. Quarantine support was added. A customizable message can be sent to destination recipients when a viral message is blocked. Improved logging was added.
