the other location where you can fiddle with settings for receipts is in
adjusting the settings for each account, but doing so uses the global
settings, which is not what you want anyway, but that's not your issue.
if you find out the solution, please reply privately.
Original
the settings are already set to what you have stated below .
Re: [JAWS-Users] email that requires recipient to send a receipt
go to Tools menu, Options, Advanced, General Tab.
tab to and space bar on the Return Receipts… Button.
tab to the following. after each tab, use the arrow keys to change