Cited in: RFC 3463
3 RFCs mentioned in the text of RFC 3463 (Enhanced Mail System Status Codes)
| RFC | Title | Status | Date |
|---|---|---|---|
| 1893 | Enhanced Mail System Status Codes | Proposed Standard | January 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement Levels | Best Current Practice | March 1997 |
| 3464 | An Extensible Message Format for Delivery Status Notifications | Draft Standard | January 2003 |