27. The method of claim 11 , wherein the method further comprises the step of sending a request for the reputation score of the message sender to a service for determining the reputation of the message sender, and wherein the step of obtaining the reputation score of the message sender comprises receiving a response to the request for the reputation score of the message sender from the service for determining a reputation of the message sender.
27. The method of claim 11 , wherein the method further comprises the step of sending a request for the reputation score of the message sender to a service for determining the reputation of the message sender, and wherein the step of obtaining the reputation score of the message sender comprises receiving a response to the request for the reputation score of the message sender from the service for determining a reputation of the message sender. 28. The method of claim 27 , wherein the step of sending the request for the reputation score of the message sender comprises sending a DNS request and receiving the response to the request for the reputation score of the message sender comprises receiving a DNS response.