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Methods and systems for managing delivery of email to local recipients using local reputations

  • US 9,258,269 B1
  • Filed: 03/25/2009
  • Issued: 02/09/2016
  • Est. Priority Date: 03/25/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method for managing delivery of email to local recipients, at least a portion of the method being performed by a computing system comprising at least one processor, the method comprising:

  • establishing, at a domain-name system, a local reputation for an email sender address;

    storing a domain-name-system record associated with the local reputation on the domain-name system;

    receiving, at the domain-name system, from a mail-transfer agent as part of a mail-transfer system, a request for the domain-name-system record associated with the email sender address;

    determining, by the domain-name system and based on the local reputation, not to send the domain-name-system record associated with the email sender address to the mail-transfer agent;

    determining, by the mail-transfer system, that a response to the request was not received from the domain-name system;

    forming a spam verdict, by the mail-transfer system, of an email sent from the email sender address for which the mail-transfer system had failed to receive the domain-name-system record;

    transmitting, by the mail-transfer agent to the domain-name system, the spam verdict to the domain-name system as feedback;

    updating, by the domain-name system, the local reputation based on the spam verdict received from the mail-transfer agent after the mail-transfer agent failed to receive the domain-name-system record.

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