QUOTE(Soxarethechamps05 @ Aug 15 2009, 10:58 PM)
I like that idea....it would come in handy if you are in a transaction so you can prove that they got the message
They already have that option on here

i was saying to make it mandatory
QUOTE(urbanmonk @ Aug 16 2009, 02:18 AM)
Not sure if it counts against your inbox space, that may be why it is optional. I don't use it very much myself, unless I need to know someone read my "friendly warning"

And i dunno, i use it all the time it may though