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

> 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.

That's an interesting point.  However it's always been possible for 
recipients listed in the to/cc fields to receive different versions
of the message, for some of those listed to not receive the message
at all, or for additional recipients to receive the message.  

Keith