Re: Keywords for "SMTP Service Extension for Content Negotiation"

> The UA-based CONNEG mechanism does query/response between two UAs that are
> connected only by the store-and-forward email service.  There is nothing
> that dictates that application-level query/response exchanges be conducted
> over connection-oriented, direct or real-time associations.

perhaps not, but once a message is relayed, the conversion (and the decision
of whether to deliver the message) is no longer under control of the sender - 
actually the most likely scenario when using the conneg proposal with the 
current infrastructure is that the message will be delivered, without 
conversion, regardless of recipient capabilities.

I thought that this is what the fax people wanted to avoid?