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STD 10

The STD subseries marks RFCs that are Internet Standards. Each STD number points to the current RFC that defines that standard; when a standard is updated, the STD number is reassigned to the new RFC.

4 documents

  • RFC 821Simple Mail Transfer ProtocolObsoleted
    August 1982internet standardreplaced by RFC2821
  • RFC 974Mail routing and the domain systemObsoleted
    January 1986historicreplaced by RFC2821
  • RFC 1869SMTP Service ExtensionsObsoleted
    November 1995internet standardreplaced by RFC2821
  • RFC 1870SMTP Service Extension for Message Size DeclarationCurrent
    November 1995internet standard

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9,828 documents indexed · data source: rfc-editor.org index · snapshot 23 August 2026