Structured, multi-layered protection and prevention is included, for free, with any SmarterMail license. Administrators can customize their spam protection using a variety of industry-standard methods including greylisting, SPF, DKIM, RBLs, URIBLs, blacklist/whitelist and more. In addition, SmarterMail includes powerful antivirus as well as powerful tools to protect against denial of service attacks, instrusion detection, password policy violations, and much more.Try for FreeBuy Now
System administrators can elect to lock down the server as a whole, and implement their own robust antispam policies, or allow domain administrators to manage antispam options. And if they want, domain administrators can even let their users manage what they want done to low, medium and high probability messages.
For system administrators who manage multiple mail servers, it's possible to configure antispam options on one server, then export those rules and import them into another SmarterMail server on the network. This allows for a robust, consistent set of antispam options on every mail server.