RFC1026 Addendum to RFC 987: (Mapping between X.400 and RFC-822)
RFC1026 Addendum to RFC 987: (Mapping between X.400 and RFC-822) S.E. Kille [ September 1987 ] ( TXT = 7117 bytes)(Obsoleted by RFC2156, RFC1327)(Updates RFC0987)(Updated by RFC1138, RFC1148)