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Re: [ietf-smtp] DKIM and smtp extension model (was: Re: [Proposal] confusing parts of the mail system

2019-02-01 11:32:15
In article <01R2OIKP8AJG00004L(_at_)mauve(_dot_)mrochek(_dot_)com> you write:
For messages bodies, yes. The situation with headers is different - the
relaxed case is easy to implement and gets mesages past certain
transformations that otherwise would break the signature.

I haven't noticed that but you see a lot more mail than I do.

Apropos this point, I stuck a new paragraph into the DKIM/SPF/DMARC
EAI update draft pointing out that the relaxed case folding applies
only to header field names which per RFC 5322 are ASCII only, so the
folding remains ordinary ASCII case folding. 

 The rest of the relaxing involves squashing white space and in mail
headers, EAI white space is the same as ASCII white space.


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