Curiously, the email you sent me appears to have never arrived via the
MLM that nmh-workers uses---I suspect it has one of those fancy features
that thinks an email that was sent to one address shouldn't be also sent
to another address (i.e. if the address of the To/Cc recipient is also a
member of the MLM exclude one of them).
As far as I know our mailing list software (hosted by savannah) does
not have such a feature; I see double-replies of messages and my own
messages sent to me on the mailing list.
--Ken