Re: Last Call: SMTP Service Extension for Content Negotiation to Proposed Standard

Keith Moore <[email protected]>
> > IMO, the ultimate aim (even if this is not practical) is to deliver
> > to each recipient the same version of the Fax as they would have
> > received IF they were the only addressee 
> 
> I think this is a reasonable and practical goal.  I don't think that 
> recipient A should experience a difference in message quality 
> (or worse, fail to receive the message at all) based on whether or 
> not you cc'ed recipient B.

Negotiation can mean that A and B receive different messages, both stating
(in to/cc) that the other received the one they didn't. Sounds very fishy
to my ears.

The thing sounds as if it's 100% incompatible with S/MIME and other
signature mechansisms. Shouldn't that be mentioned in the draft's security
considerations section?

--Arnt