GateWall Antispam is a powerful mail gateway solution with integrated spam filtering and antivirus modules. In addition to filtering, GateWall Antispam features message backup, rules-based message processing and "automatic reply." The product is built from multiple modules, which makes it more failsafe and allows running the server on a distributed system. GateWall Antispam supports all the leading spam filtering technologies and features Cloud Antispam and Bayesian statistical spam filtering solution designed by Entensys.