The Value of a Good Name
A new weapon for fighting the war on spam and e-mail overload, reputation filtering, takes on the cause.Your reputation precedes you. This is the idea behind a new weapon in the war on spam and e-mail overload from IronPort Systems: reputation filtering. The IronPort C60 Messaging Gateway appliance controls the flow of e-mail coming into your network based on the reputations of the senders. Reputations are primarily established using data collected from more than 11,000 organizations that participate in IronPorts SenderBase network. With this data, Senderbase can identify mail that appears to be coming from spammers. The more likely a message is spam, the longer the message is held in the delivery queue. Or it may not be delivered at all, depending on rules set by the C60s administrator.
The more untrustworthy a sender appears, the more stringent are the restrictions applied to that sender. The restrictions include throttling the maximum message acceptance rate, determining whether to scan content, limiting attachment size/type, and enforcing encryption.