As far as "needing" to know the root cause of everything, does it really matter? Do you need to know why you have a headache before taking some asprin? :-)

Sometimes it can save your life.

Jose
--
"Never trust anything that can think for itself, if you can't see where
it keeps its brain." (chapter 10 of book 3 - Harry Potter).
for Email, make the obvious change in the address.