Email is one of the top jumping-off points for attacks and scams of every stripe. GreatHorn takes a different approach to protecting users even if a previously approved message becomes malicious. The program integrates with the existing email program and works with Office 365 and Googles G Suite. It has a much deeper engine than most appliances and will likely catch things that they wont, but you can use it in conjunction with other mail protections and it does not harm the functionality at all.”]