SUMMARY: Limiting msg-id generate syntax

There appears to be a good contingent that is willing to limit the 
generate syntax for message id's to dot-atoms on the left of the "@" 
and domain-name- or domain-literal- looking things on the right. This 
would not change the *interpret* (obs-) syntax which would still 
require interpreting quoted-strings on the left. So, scream now or 
forever hold your peace on the following:

- Define the left hand side of the "@" in msg-id to be (dot-atom-text 
/ ob-id-left)
- Leave the right hand side of msg-id as it is (dot-atom-text / 
no-fold-literal / obs-id-right)
- Leave the text to normatively RECOMMEND (or should it be REQUIRE?) 
that the right hand side be a domain identifier (either domain name 
or domain literal)

I'd prefer to leave the ABNF of domain-literal the way it is and 
limit in the text. We've already got examples of having to unlimit 
Received because of bugs in 2822 and so that fixes in 2821bis could 
be accommodated; I'd rather leave it to other documents to define 
what it is to be a valid "domain identifier." (Remember, you've got 
to interpret all of the mess anyway, so the only thing that putting 
it into the ABNF would do is reinforce the requirement in the text.)

I'd also be inclined to *not* talk about case-sensitivity and 
comparisons since nowhere is it discussed in 2822.

pr
-- 
Pete Resnick <http://www.qualcomm.com/~presnick/>
QUALCOMM Incorporated - Direct phone: (858)651-4478, Fax: (858)651-1102