Sophos Email Protection - Subscription licence (3 years) - up to 16 cores & 24GB RAM

This single license gives you a lot more for your anti-spam budget. Get the email encryption and data loss prevention (DLP) that you need to comply with data protection and privacy laws. And, you get protection from the latest threats and spam campaigns. Sophos makes it easy to have complete security for your email, both at your network gateway and on your mail servers.