Phil Pennock <Phil.Pennock@???> probably said: > Out of interest -- what's the good reason?
>
> I can understand "not support anything but failure or delay" but I don't
> see the reason against a user being able to request that they not get
> such messages, or against using report/delivery-status for issuing the
> reply.
This has been hashed to death several times on the list. Read the
archives.
