Tags: Technical

"Outbound spam filtering is all about ensuring reliable email delivery. If your organization counts on email delivery, then you should invest in outbound spam filtering."

We've written a new white paper that discusses the need for a multi-layered approach in dealing with outbound email abuse (i.e. outbound antispam). The layers are thus:

  1. Accurate content filtering - using a great spam filter to tag and potentially reject spam messages before they leave the network;
  2. Local reputation management and policy enforcement - keeping track of the reputation of "senders" in your network, and preventing "bad" users from getting too abusive; and,
  3. IP address management - moving traffic out through different blocks of IP addresses depending on the reputation of the sender.

The idea of rolling out these techniques is to do on the sending side what receivers are doing on the receiving side - except with the benefit of knowing more about your senders, such as their "account id" or "phone number" depending on what kind of network or service you're operating. We'd love to hear your feedback on this new white paper, so go ahead and download A Multi-Layered Approach to Effective Outbound Spam Protection and let us know what you think.

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