https://app.knowbase.one/vault/rfc/docid/1158
RFC1026: Addendum to RFC 987: (Mapping between X.400 and RFC-822)
Network Working Group S.E. Kille Request for Comments 1026 University College London September 1987 Addendum to RFC 987 (Mapping betw...
https://app.knowbase.one/vault/rfc/docid/1436
RFC0127: Comments on RFC 123
Network Working Group J. Postel Request for Comments # 127 20 April 71 NIC #5843 UCLA [Category D.1 Computer Science Updates 123] Comments o...