Table 4: Features Comparison
	eTrust Antivirus	Active Mail Protection	Mail Security	Antigen	ScanMail
Antivirus Scan Engines	2	1	1	8	1
Outbreak Notification Triggers	No	Yes	Yes	Yes (including Sybari Enterprise Manager and HP OpenView integrations)	Yes
Antispam Spam Signature Scanning	N/A	Yes	Yes (Requires Premium Antispam/Additional Purchase)	Yes	Yes
Administrator Controls Exchange Spam Confidence Level	N/A	No	Yes	Yes	No
Content Filtering Wildcard support	N/A	Yes	Yes	Limited	Yes
Regular Expression support	N/A	No	Yes	No	Yes
Scans Inside Attachments	N/A	Yes	Yes	No	Yes