8. IANA Considerations
...
In addition, if additional trace header fields (i.e., in addition to
Return-path and Received) are ever created, those trace fields MUST
be added to the IANA registry established by BCP 90 (RFC 3864) [11]
for use with RFC 5322 [4].
oops.
RFC 8601 says that Authentication-Results is a trace field. Should we
file an erratum?
Or perhaps this is just the kind of additional trace header that the
paragraph above contemplates.
I agree that it is unfortunate that 5321 says there can be new trace
headers and 5322 doesn't, but that just tells us that 8601 should have
updated the ABNF in 5322, as should this draft.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly
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