Re: Compatibility wit Netnews (was I-D ACTION:draft-resnick-2822upd-01.txt)

On 4/30/07 at 9:14 PM +0200, Arnt Gulbrandsen wrote:

>Pete Resnick writes:
>>I'd rather stick with the liberal syntax for now, and maybe add a 
>>note that says, "You SHOULD be conservative in what you generate, 
>>as NO-WS-CTLs, quoted-pairs, and specials are known to cause 
>>heartburn in some environments (cf. USEFOR)."
>
>+1. Proposed text: «It is RECOMMENDED to use only A-Z, a-z, 0-9, 
>".", "." and "/" on the left-hand side, and to make the left-hand 
>side at most 64 characters long. Unusual but permitted syntax such 
>as (for example) quoted-pairs are known to cause problems in some 
>contexts.»

So, now I'm beginning to get uneasy about using SHOULD/RECOMMENDED in 
here. If we want normative language like the above, we should really 
just remove no-fold-quote (since quoted-string is already allowed in 
the obs- syntax).

How about simply:

         Note: There are contexts outside of Internet mail (specifically
         Netnews [ref]) where message identifiers containing NO-WS-CTLs,
         quoted-pairs, and specials on the left-hand side of the "@"
         cause trouble for some implementations. Since messages
         sometimes do traverse contexts, avoiding these on the left-hand
         side of the "@" may be safest for implementations.

pr
-- 
Pete Resnick <http://www.qualcomm.com/~presnick/>
QUALCOMM Incorporated