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Re: [ietf-smtp] [dispatch] BCP proposal: regular expressions for Internet Mail identifiers

2016-03-23 16:33:25
BCPs can be normative, Dale.   It's informational docs that are not.   They
are "informative."   :)

On Wed, Mar 23, 2016 at 5:27 PM, Sean Leonard <dev+ietf(_at_)seantek(_dot_)com> 

On 3/23/2016 12:02 PM, Dale R. Worley wrote:

As a work, this seems very useful, as it pulls together (or will pull
together) a lot of useful information about e-mail addresses in both
specification and practice.


   But the terminology needs to be clarified
at some point:  a single document (or sentence) is either normative or
not.  If something is a "best common practice", it is not normative, the
rules are set somewhere else.

IETF Process issue:
Well, RFC 5646/BCP 47 "Tags for Identifying Languages" is a BCP. However,
it is referred to normatively by a slew of Standards Track documents. I
would propose that this document be seen in a similar light. One would not
expect the Mail Standards to adopt these regular expressions, but other
standards that use regular expressions for e-mail would probably do best to
refer to this document. Examples include CBOR/CDDL
(draft-greevenbosch-appsawg-cbor-cddl), and DNS/NAPTR records (RFCs
3401-3404), when the subject matter is e-mail stuff.

When I raised the classification issue during initial development, one
advisor said something to the effect of oh, so it's like a Real BCP, where
it actually prescribes actual Best Current Practices, unlike what most of
the BCPs these days are. (Whatever that means, just the messenger!)


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