Possible problem with comments?

I was just rechecking the editors' copy of part 1.   As best I can tell,
the relay rules allow comments to be inserted and deleted, but the chapter
5 definition of the envelope doesn't allow them to be there in the first
place.  Am I just missing it in chapter 5, or is there a bug in the draft?
Thanks.

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Noah Mendelsohn                              Voice: 1-617-693-4036
IBM Corporation                                Fax: 1-617-693-8676
One Rogers Street
Cambridge, MA 02142
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Received on Tuesday, 1 April 2003 14:18:30 UTC