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SMTP Service Extensions
RFC 1651

Document history

Date By Action
2026-05-20
(System) Changed metadata: changed keywords to '['Mail', 'Simple', 'Transfer']' from '[]'
2026-05-20
(System) Metadata update from RFC Editor
2026-05-20
(System)
Changed author "D. Crocker": changed name from "Dave Crocker" to "D. Crocker", changed affiliation from "Silicon Graphics" to "Silicon Graphics, Inc.", cleared country (was "USA"), …
Changed author "D. Crocker": changed name from "Dave Crocker" to "D. Crocker", changed affiliation from "Silicon Graphics" to "Silicon Graphics, Inc.", cleared country (was "USA"), changed order from "-1" to "5"
2026-05-20
(System)
Changed author "E. Stefferud": changed name from "Einar Stefferud" to "E. Stefferud", changed affiliation from "Network Management Associates" to "Network Management Associates, Inc.", cleared country …
Changed author "E. Stefferud": changed name from "Einar Stefferud" to "E. Stefferud", changed affiliation from "Network Management Associates" to "Network Management Associates, Inc.", cleared country (was "USA"), changed order from "-1" to "4"
2026-05-20
(System)
Changed author "M. Rose": changed name from "Marshall Rose" to "M. Rose", changed affiliation from "Dover Beach Consulting" to "Dover Beach Consulting, Inc.", cleared country …
Changed author "M. Rose": changed name from "Marshall Rose" to "M. Rose", changed affiliation from "Dover Beach Consulting" to "Dover Beach Consulting, Inc.", cleared country (was "USA"), changed order from "-1" to "3"
2026-05-20
(System)
Changed author "N. Freed": changed name from "Ned Freed" to "N. Freed", changed affiliation from "Innosoft" to "Innosoft International, Inc.", cleared country (was "USA"), changed …
Changed author "N. Freed": changed name from "Ned Freed" to "N. Freed", changed affiliation from "Innosoft" to "Innosoft International, Inc.", cleared country (was "USA"), changed order from "-1" to "2"
2026-05-20
(System)
Changed author "J. Klensin": changed name from "John Klensin" to "J. Klensin", changed affiliation from "WG Chair" to "MCI Data Services Division", cleared country (was …
Changed author "J. Klensin": changed name from "John Klensin" to "J. Klensin", changed affiliation from "WG Chair" to "MCI Data Services Division", cleared country (was "USA"), changed order from "-1" to "1"
2026-05-20
(System) Metadata update from RFC Editor
2017-05-16
(System) Changed document authors from "" to "Einar Stefferud, Ned Freed, John Klensin, Marshall Rose, Dave Crocker"
1994-07-01
(System) RFC published