@techreport{fosterd-dmarc-spf-best-practices-00, number = {draft-fosterd-dmarc-spf-best-practices-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-fosterd-dmarc-spf-best-practices/00/}, author = {Douglas Foster}, title = {{Sender Authentication Best Practices}}, pagetotal = 12, year = 2023, month = may, day = 13, abstract = {Sender Authentication contributes to the goal of detecting and blocking maliciously impersonated email identifiers. Sender Policy Framework (SPF) (RFC 7208) validates the RFC5321.MailFrom address, and Domain-based Message Authentication, Reporting, and Conformance (DMARC) (RFC 7489) validates the RFC5322.From header address. Both techniques may produce a result other than PASS on a message that the recipient considers acceptable and wanted. This document describes best practices for integrating SPF and DMARC into an email filtering strategy.}, }