%% You should probably cite draft-ietf-appsawg-greylisting instead of this I-D. @techreport{kucherawy-greylisting-bcp-01, number = {draft-kucherawy-greylisting-bcp-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-kucherawy-greylisting-bcp/01/}, author = {Murray Kucherawy}, title = {{Best Current Practices for Email Greylisting}}, pagetotal = 6, year = 2011, month = oct, day = 24, abstract = {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.}, }