I have a subscriber whose mail often bounces back to me as the list-owner.
Her postmaster tells her that the problem is that Listserv has recorded
her address with the domain in all caps, whereas their domain expects to be
identified in mixed case and will otherwise occasionally reject mail.
 
I believe I should ask the subscriber to tell the postmaster that Internet
mail needs to be addressable with case-insensitive domains, and that they
should refer to RFC822 paragraph 3.4.7 "Case Independence" (and thanks to
many of you for locating this for me) to verify this accepted rule.
 
Is this logic I'm presenting correct?
 
-- Roger Burns   [log in to unmask]