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108 results ( Show  25  | All )

NumberFilesTitleAuthorsDateMore InfoStatus
RFC 20 a.k.a. STD 80

ASCII, PDF, PDF with ImagesASCII format for network interchange V.G. CerfOctober 1969ErrataInternet Standard (changed from Unknown January 2015)
RFC 768 a.k.a. STD 6

ASCII, PDF User Datagram Protocol J. PostelAugust 1980    Internet Standard
RFC 791 part of STD 5

ASCII, PDF Internet Protocol J. PostelSeptember 1981Obsoletes RFC 760, Updated by RFC 1349, RFC 2474, RFC 6864, ErrataInternet Standard
RFC 792 part of STD 5

ASCII, PDF Internet Control Message Protocol J. PostelSeptember 1981Obsoletes RFC 777, Updated by RFC 950, RFC 4884, RFC 6633, RFC 6918, ErrataInternet Standard
RFC 793 a.k.a. STD 7

ASCII, PDF Transmission Control Protocol J. PostelSeptember 1981Obsoletes RFC 761, Updated by RFC 1122, RFC 3168, RFC 6093, RFC 6528, ErrataInternet Standard
RFC 821 part of STD 10

ASCII, PDF Simple Mail Transfer Protocol J. PostelAugust 1982Obsoletes RFC 788, Obsoleted by RFC 2821Internet Standard
RFC 822 a.k.a. STD 11

ASCII, PDFSTANDARD FOR THE FORMAT OF ARPA INTERNET TEXT MESSAGES D. CrockerAugust 1982Obsoletes RFC 733, Obsoleted by RFC 2822, Updated by RFC 1123, RFC 2156, RFC 1327, RFC 1138, RFC 1148, ErrataInternet Standard
RFC 826 a.k.a. STD 37

ASCII, PDFEthernet Address Resolution Protocol: Or Converting Network Protocol Addresses to 48.bit Ethernet Address for Transmission on Ethernet HardwareD. PlummerNovember 1982Updated by RFC 5227, RFC 5494Internet Standard
RFC 854 part of STD 8

ASCII, PDF Telnet Protocol Specification J. Postel, J.K. ReynoldsMay 1983Obsoletes RFC 764, Updated by RFC 5198, ErrataInternet Standard
RFC 855 part of STD 8

ASCII, PDF Telnet Option Specifications J. Postel, J.K. ReynoldsMay 1983Obsoletes NIC 18640Internet Standard
RFC 856 a.k.a. STD 27

ASCII, PDF Telnet Binary Transmission J. Postel, J. ReynoldsMay 1983Obsoletes NIC 15389Internet Standard
RFC 857 a.k.a. STD 28

ASCII, PDF Telnet Echo Option J. Postel, J. ReynoldsMay 1983Obsoletes NIC 15390Internet Standard
RFC 858 a.k.a. STD 29

ASCII, PDF Telnet Suppress Go Ahead Option J. Postel, J. ReynoldsMay 1983Obsoletes NIC 15392Internet Standard
RFC 859 a.k.a. STD 30

ASCII, PDF Telnet Status Option J. Postel, J. ReynoldsMay 1983Obsoletes RFC 651Internet Standard
RFC 860 a.k.a. STD 31

ASCII, PDF Telnet Timing Mark Option J. Postel, J. ReynoldsMay 1983Obsoletes NIC 16238Internet Standard
RFC 861 a.k.a. STD 32

ASCII, PDF Telnet Extended Options: List Option J. Postel, J. ReynoldsMay 1983Obsoletes NIC 16239Internet Standard
RFC 862 a.k.a. STD 20

ASCII, PDF Echo Protocol J. PostelMay 1983    Internet Standard
RFC 863 a.k.a. STD 21

ASCII, PDF Discard Protocol J. PostelMay 1983    Internet Standard
RFC 864 a.k.a. STD 22

ASCII, PDF Character Generator Protocol J. PostelMay 1983ErrataInternet Standard
RFC 865 a.k.a. STD 23

ASCII, PDF Quote of the Day Protocol J. PostelMay 1983    Internet Standard
RFC 866 a.k.a. STD 24

ASCII, PDF Active users J. PostelMay 1983    Internet Standard
RFC 867 a.k.a. STD 25

ASCII, PDF Daytime Protocol J. PostelMay 1983    Internet Standard
RFC 868 a.k.a. STD 26

ASCII, PDF Time Protocol J. Postel, K. HarrenstienMay 1983ErrataInternet Standard
RFC 891 a.k.a. STD 44

ASCII, PDFDCN Local-Network Protocols D.L. MillsDecember 1983    Internet Standard
RFC 894 a.k.a. STD 41

ASCII, PDFA Standard for the Transmission of IP Datagrams over Ethernet Networks C. HornigApril 1984ErrataInternet Standard
RFC 895 a.k.a. STD 42

ASCII, PDF Standard for the transmission of IP datagrams over experimental Ethernet networks J. PostelApril 1984    Internet Standard
RFC 903 a.k.a. STD 38

ASCII, PDF A Reverse Address Resolution ProtocolR. Finlayson, T. Mann, J.C. Mogul, M. TheimerJune 1984    Internet Standard
RFC 907 a.k.a. STD 40

ASCII, PDF Host Access Protocol specification Bolt Beranek and Newman LaboratoriesJuly 1984Updated by RFC 1221Internet Standard
RFC 919 part of STD 5

ASCII, PDF Broadcasting Internet Datagrams J.C. MogulOctober 1984    Internet Standard
RFC 922 part of STD 5

ASCII, PDF Broadcasting Internet datagrams in the presence of subnets J.C. MogulOctober 1984    Internet Standard
RFC 950 part of STD 5

ASCII, PDF Internet Standard Subnetting Procedure J.C. Mogul, J. PostelAugust 1985Updates RFC 792, Updated by RFC 6918Internet Standard
RFC 959 a.k.a. STD 9

ASCII, PDFFile Transfer Protocol J. Postel, J. ReynoldsOctober 1985Obsoletes RFC 765, Updated by RFC 2228, RFC 2640, RFC 2773, RFC 3659, RFC 5797, RFC 7151, ErrataInternet Standard
RFC 1001 part of STD 19

ASCII, PDF Protocol standard for a NetBIOS service on a TCP/UDP transport: Concepts and methods NetBIOS Working Group in the Defense Advanced Research Projects Agency, Internet Activities Board, End-to-End Services Task ForceMarch 1987ErrataInternet Standard
RFC 1002 part of STD 19

ASCII, PDF Protocol standard for a NetBIOS service on a TCP/UDP transport: Detailed specifications NetBIOS Working Group in the Defense Advanced Research Projects Agency, Internet Activities Board, End-to-End Services Task ForceMarch 1987ErrataInternet Standard
RFC 1006 a.k.a. STD 35

ASCII, PDFISO Transport Service on top of the TCP Version: 3 M.T. Rose, D.E. CassMay 1987Obsoletes RFC 983, Updated by RFC 2126Internet Standard
RFC 1034 part of STD 13

ASCII, PDF Domain names - concepts and facilities P.V. MockapetrisNovember 1987Obsoletes RFC 973, RFC 882, RFC 883, Updated by RFC 1101, RFC 1183, RFC 1348, RFC 1876, RFC 1982, RFC 2065, RFC 2181, RFC 2308, RFC 2535, RFC 4033, RFC 4034, RFC 4035, RFC 4343, RFC 4035, RFC 4592, RFC 5936, RFC 8020, ErrataInternet Standard
RFC 1035 part of STD 13

ASCII, PDFDomain names - implementation and specification P.V. MockapetrisNovember 1987Obsoletes RFC 973, RFC 882, RFC 883, Updated by RFC 1101, RFC 1183, RFC 1348, RFC 1876, RFC 1982, RFC 1995, RFC 1996, RFC 2065, RFC 2136, RFC 2181, RFC 2137, RFC 2308, RFC 2535, RFC 2673, RFC 2845, RFC 3425, RFC 3658, RFC 4033, RFC 4034, RFC 4035, RFC 4343, RFC 5936, RFC 5966, RFC 6604, RFC 7766, ErrataInternet Standard
RFC 1042 a.k.a. STD 43

ASCII, PDF Standard for the transmission of IP datagrams over IEEE 802 networks J. Postel, J.K. ReynoldsFebruary 1988Obsoletes RFC 948, ErrataInternet Standard
RFC 1044 a.k.a. STD 45

ASCII, PDF Internet Protocol on Network System's HYPERchannel: Protocol Specification K. Hardwick, J. LekashmanFebruary 1988Updated by RFC 5494Internet Standard
RFC 1055 a.k.a. STD 47

ASCII, PDF Nonstandard for transmission of IP datagrams over serial lines: SLIP J.L. RomkeyJune 1988ErrataInternet Standard
RFC 1065ASCII, PDF Structure and identification of management information for TCP/IP-based internets K. McCloghrie, M.T. RoseAugust 1988Obsoleted by RFC 1155, ErrataInternet Standard
RFC 1088 a.k.a. STD 48

ASCII, PDF Standard for the transmission of IP datagrams over NetBIOS networks L.J. McLaughlinFebruary 1989    Internet Standard
RFC 1112 part of STD 5

ASCII, PDF Host extensions for IP multicasting S.E. DeeringAugust 1989Obsoletes RFC 988, RFC 1054, Updated by RFC 2236Internet Standard
RFC 1119ASCII, PS, PDF, PDF with Images Network Time Protocol (version 2) specification and implementation D.L. MillsSeptember 1989Obsoletes RFC 958, RFC 1059, Obsoleted by RFC 1305Internet Standard
RFC 1122 part of STD 3

ASCII, PDF Requirements for Internet Hosts - Communication Layers R. Braden, Ed.October 1989Updates RFC 793, Updated by RFC 1349, RFC 4379, RFC 5884, RFC 6093, RFC 6298, RFC 6633, RFC 6864, RFC 8029, ErrataInternet Standard
RFC 1123 part of STD 3

ASCII, PDFRequirements for Internet Hosts - Application and Support R. Braden, Ed.October 1989Updates RFC 822, RFC 952, Updated by RFC 1349, RFC 2181, RFC 5321, RFC 5966, RFC 7766, ErrataInternet Standard
RFC 1132 a.k.a. STD 49

ASCII, PDF Standard for the transmission of 802.2 packets over IPX networks L.J. McLaughlinNovember 1989    Internet Standard
RFC 1155 part of STD 16

ASCII, PDF Structure and identification of management information for TCP/IP-based internets M.T. Rose, K. McCloghrieMay 1990Obsoletes RFC 1065, ErrataInternet Standard
RFC 1201 a.k.a. STD 46

ASCII, PDF Transmitting IP traffic over ARCNET networks D. ProvanFebruary 1991Obsoletes RFC 1051Internet Standard
RFC 1209 a.k.a. STD 52

ASCII, PDFThe Transmission of IP Datagrams over the SMDS ServiceD. Piscitello, J. LawrenceMarch 1991    Internet Standard
RFC 1212 part of STD 16

ASCII, PDF Concise MIB definitions M.T. Rose, K. McCloghrieMarch 1991    Internet Standard
RFC 1213 a.k.a. STD 17

ASCII, PDFManagement Information Base for Network Management of TCP/IP-based internets: MIB-IIK. McCloghrie, M. RoseMarch 1991Obsoletes RFC 1158, Updated by RFC 2011, RFC 2012, RFC 2013Internet Standard
RFC 1350 a.k.a. STD 33

ASCII, PDF The TFTP Protocol (Revision 2) K. SollinsJuly 1992Obsoletes RFC 783, Updated by RFC 1782, RFC 1783, RFC 1784, RFC 1785, RFC 2347, RFC 2348, RFC 2349, ErrataInternet Standard
RFC 1390 a.k.a. STD 36

ASCII, PDF Transmission of IP and ARP over FDDI Networks D. KatzJanuary 1993    Internet Standard
RFC 1661 part of STD 51

ASCII, PDF The Point-to-Point Protocol (PPP) W. Simpson, Ed.July 1994Obsoletes RFC 1548, Updated by RFC 2153, ErrataInternet Standard
RFC 1662 part of STD 51

ASCII, PDF PPP in HDLC-like Framing W. Simpson, Ed.July 1994Obsoletes RFC 1549, ErrataInternet Standard
RFC 1722 a.k.a. STD 57

ASCII, PDF RIP Version 2 Protocol Applicability Statement G. MalkinNovember 1994    Internet Standard (changed from Draft Standard November 1998)
RFC 1723ASCII, PDF RIP Version 2 - Carrying Additional Information G. MalkinNovember 1994Obsoletes RFC 1388, Obsoleted by RFC 2453, Updates RFC 1058Internet Standard (changed from Draft Standard November 1998)
RFC 1725ASCII, PDF Post Office Protocol - Version 3 J. Myers, M. RoseNovember 1994Obsoletes RFC 1460, Obsoleted by RFC 1939, ErrataInternet Standard (changed from Draft Standard)
RFC 1869 part of STD 10

ASCII, PDF SMTP Service Extensions J. Klensin, N. Freed, M. Rose, E. Stefferud, D. CrockerNovember 1995Obsoletes RFC 1651, Obsoleted by RFC 2821Internet Standard
RFC 1870 part of STD 10

ASCII, PDF SMTP Service Extension for Message Size Declaration J. Klensin, N. Freed, K. MooreNovember 1995Obsoletes RFC 1653Internet Standard
RFC 1939 part of STD 53

ASCII, PDF Post Office Protocol - Version 3 J. Myers, M. RoseMay 1996Obsoletes RFC 1725, Updated by RFC 1957, RFC 2449, RFC 6186, ErrataInternet Standard
RFC 2289 a.k.a. STD 61

ASCII, PDF A One-Time Password System N. Haller, C. Metz, P. Nesser, M. StrawFebruary 1998Obsoletes RFC 1938Internet Standard (changed from Draft Standard June 2000)
RFC 2328 a.k.a. STD 54

ASCII, PDF OSPF Version 2 J. MoyApril 1998Obsoletes RFC 2178, Updated by RFC 5709, RFC 6549, RFC 6845, RFC 6860, RFC 7474, RFC 8042, ErrataInternet Standard
RFC 2427 a.k.a. STD 55

ASCII, PDF Multiprotocol Interconnect over Frame Relay C. Brown, A. MalisSeptember 1998Obsoletes RFC 1490, RFC 1294Internet Standard
RFC 2453 part of STD 56

ASCII, PDF RIP Version 2 G. MalkinNovember 1998Obsoletes RFC 1723, Updated by RFC 4822, ErrataInternet Standard
RFC 2578 part of STD 58

ASCII, PDF Structure of Management Information Version 2 (SMIv2) K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed.April 1999Obsoletes RFC 1902Internet Standard
RFC 2579 part of STD 58

ASCII, PDF Textual Conventions for SMIv2 K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed.April 1999Obsoletes RFC 1903, ErrataInternet Standard
RFC 2580 part of STD 58

ASCII, PDF Conformance Statements for SMIv2 K. McCloghrie, Ed., D. Perkins, Ed., J. Schoenwaelder, Ed.April 1999Obsoletes RFC 1904Internet Standard
RFC 2819 a.k.a. STD 59

ASCII, PDF Remote Network Monitoring Management Information Base S. WaldbusserMay 2000Obsoletes RFC 1757, ErrataInternet Standard
RFC 2920 a.k.a. STD 60

ASCII, PDF SMTP Service Extension for Command Pipelining N. FreedSeptember 2000Obsoletes RFC 2197Internet Standard
RFC 3411 part of STD 62

ASCII, PDF An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks D. Harrington, R. Presuhn, B. WijnenDecember 2002Obsoletes RFC 2571, Updated by RFC 5343, RFC 5590Internet Standard
RFC 3412 part of STD 62

ASCII, PDF Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) J. Case, D. Harrington, R. Presuhn, B. WijnenDecember 2002Obsoletes RFC 2572, Updated by RFC 5590Internet Standard
RFC 3413 part of STD 62

ASCII, PDF Simple Network Management Protocol (SNMP) Applications D. Levi, P. Meyer, B. StewartDecember 2002Obsoletes RFC 2573, ErrataInternet Standard
RFC 3414 part of STD 62

ASCII, PDF User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3) U. Blumenthal, B. WijnenDecember 2002Obsoletes RFC 2574, Updated by RFC 5590, ErrataInternet Standard
RFC 3415 part of STD 62

ASCII, PDF View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP) B. Wijnen, R. Presuhn, K. McCloghrieDecember 2002Obsoletes RFC 2575, ErrataInternet Standard
RFC 3416 part of STD 62

ASCII, PDF Version 2 of the Protocol Operations for the Simple Network Management Protocol (SNMP) R. Presuhn, Ed.December 2002Obsoletes RFC 1905, ErrataInternet Standard
RFC 3417 part of STD 62

ASCII, PDF Transport Mappings for the Simple Network Management Protocol (SNMP) R. Presuhn, Ed.December 2002Obsoletes RFC 1906, Updated by RFC 4789, RFC 5590Internet Standard
RFC 3418 part of STD 62

ASCII, PDF Management Information Base (MIB) for the Simple Network Management Protocol (SNMP) R. Presuhn, Ed.December 2002Obsoletes RFC 1907, ErrataInternet Standard
RFC 3550 a.k.a. STD 64

ASCII, PS, PDF, PDF with ImagesRTP: A Transport Protocol for Real-Time Applications H. Schulzrinne, S. Casner, R. Frederick, V. JacobsonJuly 2003Obsoletes RFC 1889, Updated by RFC 5506, RFC 5761, RFC 6051, RFC 6222, RFC 7022, RFC 7160, RFC 7164, RFC 8083, RFC 8108, ErrataInternet Standard (changed from Draft Standard)
RFC 3551 a.k.a. STD 65

ASCII, PS, PDF, PDF with Images RTP Profile for Audio and Video Conferences with Minimal Control H. Schulzrinne, S. CasnerJuly 2003Obsoletes RFC 1890, Updated by RFC 5761, RFC 7007Internet Standard (changed from Draft Standard)
RFC 3629 a.k.a. STD 63

ASCII, PDF UTF-8, a transformation format of ISO 10646 F. YergeauNovember 2003Obsoletes RFC 2279Internet Standard
RFC 3986 a.k.a. STD 66

ASCII, PDFUniform Resource Identifier (URI): Generic Syntax T. Berners-Lee, R. Fielding, L. MasinterJanuary 2005Obsoletes RFC 2732, RFC 2396, RFC 1808, Updates RFC 1738, Updated by RFC 6874, RFC 7320, ErrataInternet Standard
RFC 4506 a.k.a. STD 67

ASCII, PDFXDR: External Data Representation StandardM. Eisler, Ed.May 2006Obsoletes RFC 1832, ErrataInternet Standard
RFC 5011 a.k.a. STD 74

ASCII, PDFAutomated Updates of DNS Security (DNSSEC) Trust AnchorsM. StJohnsSeptember 2007    Internet Standard (changed from Proposed Standard January 2013)
RFC 5234 a.k.a. STD 68

ASCII, PDFAugmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. OverellJanuary 2008Obsoletes RFC 4234, Updated by RFC 7405, ErrataInternet Standard
RFC 5343 part of STD 78

ASCII, PDFSimple Network Management Protocol (SNMP) Context EngineID DiscoveryJ. SchoenwaelderSeptember 2008Updates RFC 3411Internet Standard (changed from Proposed Standard February 2014)
RFC 5590 part of STD 78

ASCII, PDFTransport Subsystem for the Simple Network Management Protocol (SNMP)D. Harrington, J. SchoenwaelderJune 2009Updates RFC 3411, RFC 3412, RFC 3414, RFC 3417Internet Standard (changed from Proposed Standard February 2014)
RFC 5591 part of STD 78

ASCII, PDFTransport Security Model for the Simple Network Management Protocol (SNMP)D. Harrington, W. HardakerJune 2009    Internet Standard (changed from Proposed Standard February 2014)
RFC 5652 a.k.a. STD 70

ASCII, PDFCryptographic Message Syntax (CMS)R. HousleySeptember 2009Obsoletes RFC 3852, ErrataInternet Standard (changed from Draft Standard June 2013)
RFC 5730 part of STD 69

ASCII, PDFExtensible Provisioning Protocol (EPP)S. HollenbeckAugust 2009Obsoletes RFC 4930, ErrataInternet Standard
RFC 5731 part of STD 69

ASCII, PDFExtensible Provisioning Protocol (EPP) Domain Name MappingS. HollenbeckAugust 2009Obsoletes RFC 4931, ErrataInternet Standard
RFC 5732 part of STD 69

ASCII, PDFExtensible Provisioning Protocol (EPP) Host MappingS. HollenbeckAugust 2009Obsoletes RFC 4932Internet Standard
RFC 5733 part of STD 69

ASCII, PDFExtensible Provisioning Protocol (EPP) Contact MappingS. HollenbeckAugust 2009Obsoletes RFC 4933Internet Standard
RFC 5734 part of STD 69

ASCII, PDFExtensible Provisioning Protocol (EPP) Transport over TCPS. HollenbeckAugust 2009Obsoletes RFC 4934, ErrataInternet Standard
RFC 6152 a.k.a. STD 71

ASCII, PDFSMTP Service Extension for 8-bit MIME TransportJ. Klensin, N. Freed, M. Rose, D. Crocker, Ed.March 2011Obsoletes RFC 1652Internet Standard
RFC 6353 part of STD 78

ASCII, PDFTransport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)W. HardakerJuly 2011Obsoletes RFC 5953Internet Standard (changed from Draft Standard February 2014)
RFC 6376 a.k.a. STD 76

ASCII, PDFDomainKeys Identified Mail (DKIM) SignaturesD. Crocker, Ed., T. Hansen, Ed., M. Kucherawy, Ed.September 2011Obsoletes RFC 4871, RFC 5672, ErrataInternet Standard (changed from Draft Standard June 2013)
RFC 6409 a.k.a. STD 72

ASCII, PDFMessage Submission for MailR. Gellens, J. KlensinNovember 2011Obsoletes RFC 4409, ErrataInternet Standard
RFC 6522 a.k.a. STD 73

ASCII, PDFThe Multipart/Report Media Type for the Reporting of Mail System Administrative MessagesM. Kucherawy, Ed.January 2012Obsoletes RFC 3462, Updated by RFC 6533Internet Standard
RFC 6891 a.k.a. STD 75

ASCII, PDFExtension Mechanisms for DNS (EDNS(0))J. Damas, M. Graff, P. VixieApril 2013Obsoletes RFC 2671, RFC 2673, ErrataInternet Standard
RFC 7011 a.k.a. STD 77

ASCII, PDFSpecification of the IP Flow Information Export (IPFIX) Protocol for the Exchange of Flow InformationB. Claise, Ed., B. Trammell, Ed., P. AitkenSeptember 2013Obsoletes RFC 5101, ErrataInternet Standard
RFC 7296 a.k.a. STD 79

ASCII, PDFInternet Key Exchange Protocol Version 2 (IKEv2)C. Kaufman, P. Hoffman, Y. Nir, P. Eronen, T. KivinenOctober 2014Obsoletes RFC 5996, Updated by RFC 7427, RFC 7670, ErrataInternet Standard
RFC 7679 a.k.a. STD 81

ASCII, PDFA One-Way Delay Metric for IP Performance Metrics (IPPM)G. Almes, S. Kalidindi, M. Zekauskas, A. Morton, Ed.January 2016Obsoletes RFC 2679Internet Standard
RFC 7680 a.k.a. STD 82

ASCII, PDFA One-Way Loss Metric for IP Performance Metrics (IPPM)G. Almes, S. Kalidindi, M. Zekauskas, A. Morton, Ed.January 2016Obsoletes RFC 2680Internet Standard
RFC 7761 a.k.a. STD 83

ASCII, PDFProtocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised)B. Fenner, M. Handley, H. Holbrook, I. Kouvelas, R. Parekh, Z. Zhang, L. ZhengMarch 2016Obsoletes RFC 4601Internet Standard
RFC 8077 a.k.a. STD 84

ASCII, PDFPseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)L. Martini, Ed., G. Heron, Ed.February 2017Obsoletes RFC 4447, RFC 6723Internet Standard
RFC 8098 a.k.a. STD 85

ASCII, PDFMessage Disposition NotificationT. Hansen, Ed., A. Melnikov, Ed.February 2017Obsoletes RFC 3798, Updates RFC 2046, RFC 3461Internet Standard