https://app.knowbase.one/vault/rfc/docid/1506
RFC1343: A User Agent Configuration Mechanism for Multimedia Mail Format Information
Network Working Group N. Borenstein, Bellcore Request for Comments: 1343 June 1992 A User Agent Configuration Mechanism For Multimedia Mail Format Information Status of Thi...
https://app.knowbase.one/vault/rfc/docid/1706
RFC1524: A User Agent Configuration Mechanism For Multimedia Mail Format Information
Network Working Group N. Borenstein Request for Comments: 1524 Bellcore Category: Informational September 1993 A User Agent Configuration Mechanism F...