clamav is a plugin for spmfilter that enables spmfilter to check mails with the Clam AntiVirus open source toolkit for viruses. The major goal of this plugin is to provide an easy way for virus-scanning emails. If ClamAV detects malicious software like viruses the affected email is discarded by the plugin. Optionally notifications can be enabled to inform the recipients and sender (configurable) about the discarded message.