Cited in: RFC 7505
9 RFCs mentioned in the text of RFC 7505 (A "Null MX" No Service Resource Record for Domains That Accept No Mail)
| RFC | Title | Status | Date |
|---|---|---|---|
| 1035 | Domain names - implementation and specification | Internet Standard | November 1987 |
| 2119 | Key words for use in RFCs to Indicate Requirement Levels | Best Current Practice | March 1997 |
| 2782 | A DNS RR for specifying the location of services (DNS SRV) | Proposed Standard | February 2000 |
| 5321 | Simple Mail Transfer Protocol | Draft Standard | October 2008 |
| 5322 | Internet Message Format | Draft Standard | October 2008 |
| 5598 | Internet Mail Architecture | Informational | July 2009 |
| 5741 | RFC Streams, Headers, and Boilerplates | Informational | December 2009 |
| 7208 | Sender Policy Framework (SPF) for Authorizing Use of Domains in Email, Version 1 | Proposed Standard | April 2014 |
| 7504 | SMTP 521 and 556 Reply Codes | Proposed Standard | June 2015 |