1. A computer-implemented method for operation upon one or more data processors to assign a reputation to a messaging entity, comprising: receiving a communication at the one or more data processor comprising data that identifies a plurality of biasing characteristics related to a messaging entity associated with the communication; analyzing the identified plurality of biasing characteristics related to the messaging entity associated with the communication based upon a plurality of criteria; biasing a reputation score associated with the messaging entity based upon the analysis of the identified plurality of biasing characteristics related to the messaging entity associated with the communication; and determining an action to be taken with respect to a communication associated with the messaging entity based upon the reputation score.