We installed the ClamAV email Antivirus across our fleet.
Now all emails handled by our mail servers will automatically be scanned by ClamAV.
ClamAV is an antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats. It is the de facto standard for mail gateway scanning. It provides a high performance mutli-threaded scanning daemon, command line utilities for on demand file scanning, and an intelligent tool for automatic signature updates.