>So, is it better to put in a sentence about representing non-ASCII >text in the group name without including a replyable address? The main motivation is to provide a syntax for a non-replyable address in From: and Sender: headers for cases where that is appropriate. See the EAI downgrade documents for a concrete example. A secondary motivation is to remove an arcane restriction that has not turned out to be useful in practice. R's, John