Re: [ietf-dkim] [Editorial Errata Reported] RFC6376 (5260)

["John R. Levine" <[e-mail]>]

>  NEW
>
>    Header fields are lines beginning with a field name, followed by a
>    colon (":"), followed by a field body, and terminated by CRLF.  A
>    field name MUST be composed of printable US-ASCII characters (i.e.,
>    characters that have values between 33 and 126, inclusive), except
>    colon.  In all cases, field names are interpreted as case-insensitive
>    strings, so that, for example, "Subject", "SUBJECT", and "SuBjEcT"
>    are considered to be the same field name.

Seems reasonable.  While we're picking nits, RFC 3864 says you can't register a 
field with a dot in it, might be worth a mention.

Also, according to the spec, #)*%;' is a valid field name, although I observe 
that every name in the field name registries is LDH.  Would it be worth a note 
saying that LDH names are likely to interoperate better?

Regards,
John Levine, [e-mail], Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly

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