wire / http-header / x400-content-return

X400-Content-Return

Message header field "X400-Content-Return" (protocol: mail). Defined in RFC4021.

http-header kind header status standard verification verified tier A iana-registry-row@1

aka: X400-Content-Return

registry record

value: X400-Content-Return

references: RFC4021

valueX400-Content-Return
protocolmail
status
Reference[RFC4021]

provenance

agent: curl -H 'accept: application/json' wire.phall.io/http-header/x400-content-return or /http-header/x400-content-return.json