Best Current Practices for Email Greylisting

Document Type Replaced Internet-Draft (individual)
Last updated 2011-12-06 (latest revision 2011-10-24)
Replaced by draft-ietf-appsawg-greylisting
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Expired & archived
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IESG IESG state Replaced by draft-ietf-appsawg-greylisting
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo describes best current practices for the art of email greylisting, the practice of providing temporarily degraded service to unknown email clients as an anti-abuse mechanism.


Murray Kucherawy (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)