We updated line 9 to "firstname.lastname@example.org" and ALSO updated bcc entries to read:
$WA_MailObject = WAUE_AddBCC($WA_MailObject,"email@example.com");
And now our client is getting his eCart email receipt BUT HIS CUSTOMER IS NOT (just getting the screen receipt).
NEW INFO: we just got the customer receipt on the last test order my boss placed 15 minutes ago. The orders he placed earlier this afternoon did not send an email. The only difference is on the most recent order he used his me.com email address and on the previous ones he used his fridrichdesign.com email address.