IDENTIFYING FIRST CONTACT UNSOLICITED COMMUNICATIONS

摘要

Techniques involving identification of electronic messages that are the first contact between the sender identification and addressed recipients. One representative technique includes identifying electronic messages originating from a sender that are first contact electronic messages between the sender and targeted recipients. The sender of the electronic messages may be designated as a source of unsolicited messages if heuristics involving the first contact electronic messages indicate a distribution of unsolicited messages by the sender.

主权项

1. A method performed by a hardware computing system, the method comprising:
identifying, by hardware computing system based on characteristics of a plurality of electronic messages, a sender of the plurality of electronic messages; determining, by hardware computing system, a ratio based on number of first-contact emails of the plurality of electronic messages relative to a total number of the plurality of electronic messages; designating, by hardware computing system based on a comparison of the ratio to a threshold, the sender a source of unsolicited electronic messages; and taking, by hardware computing system, at least one action in response to the sender being designated the source of the unsolicited electronic messages.