{"draft":"draft-ietf-appsawg-greylisting-09","doc_id":"RFC6647","title":"Email Greylisting: An Applicability Statement for SMTP","authors":["M. Kucherawy","D. Crocker"],"format":["ASCII","HTML"],"page_count":"17","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Applications Area Working Group APP","abstract":"This document describes the art of email greylisting, the practice of\r\nproviding temporarily degraded service to unknown email clients as an\r\nanti-abuse mechanism.\r\n\r\nGreylisting is an established mechanism deemed essential to the\r\nrepertoire of current anti-abuse email filtering systems. \r\n[STANDARDS-TRACK]","pub_date":"June 2012","keywords":["[--------]","Email","Greylisting","Spam"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC6647","errata_url":null}