Cited by: RFC 6647
2 RFCs whose text mentions RFC 6647 (Email Greylisting: An Applicability Statement for SMTP), newest first
| RFC | Title | Status | Date |
|---|---|---|---|
| 7208 | Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1 | Proposed Standard | April 2014 |
| 6710 | Simple Mail Transfer Protocol Extension for Message Transfer Priorities | Proposed Standard | August 2012 |