message should be deleted. If there exist any messages
with the same Extended ID that are *newer*, then this
message should be dropped.
-F rFc821 address For Internet mail, this is the delivery address of the
+F rFc822 address For Internet mail, this is the delivery address of the
message author.
G Gateway domain This field is provided solely for the implementation
of C86Net gateways, and holds the C86Net domain of