Email Greylisting: An Applicability Statement for SMTP, June 2012
- File formats:
- PROPOSED STANDARD
- M. Kucherawy
- appsawg (app)
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This document describes the art of email greylisting, the practice of providing temporarily degraded service to unknown email clients as an anti-abuse mechanism.
Greylisting is an established mechanism deemed essential to the repertoire of current anti-abuse email filtering systems. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.