Ok, now I feel really dumb because I gave you incorrect information originally.
Find:
PHP Code:
vbmail($vbulletin->options['webmasteremail'], $isbot_subject, $isbot_message, true);
Replace with THIS, instead of my earlier advice:
PHP Code:
vbmail('yourname@yoursite.com', $isbot_subject, $isbot_message, true);
This
does work, I spent time testing it myself. Can't leave the hook, $vbulletin->options in there if you're changing the email to something other than the admin email for the board.