Hexamail Guard is a comprehensive server-based email gateway software that provides antispam, antiphishing, and antivirus features. Hexamail Guard employs powerful content inspection techniques to block spam from new IP addresses or of a new nature. It can be configured to use Bayesian analysis, DNS-based blocklists, keywords and expression matching, sender blacklisting, whitelisting, challenge-response for blocked email, email tagging, and email deletion. Hexamail Guard integrates with all versions of Microsoft Exchange on-premises, including Exchange 2016, 2013, 2010, 2007, 2003, 2000, or 5.5.
