This notice should
a) not be sent to "all" due to the precedence "bulk"
says who? it's not in 1123. nor in 1891-1894. 2076 says this about
precedence:
Sometimes used as a priority Precedence: Non-standard,
value which can influence controversial,
transmission speed and delivery. discouraged.
Common values are "bulk" and
"first-class". Other uses is to
control automatic replies and to
control return-of-content
facilities, and to stop mailing
list loops.
nor is it appropriate for any message header to control reporting of
delivery success or failure.
Keith