Review on Cellopoint Security Email Gateway by Trevor Bannister

I like that it has all my necessary features, such as spam filtering/ blocking for multiple email domains with one product instead of purchasing several products from different companies (which can be costly).

It also allows me access control over which users are allowed or not able connect via SMTP protocol by setting up rules within its configuration files /etc/. This helps manage who connects what IP addresses at certain times through our network firewall allowing us more protection against threats without having other additional equipment installed into each workstation's computer system itself!