Confirmation mail after checkout

Hi,
when the customer make the checkout, he recives two mail, one with "State of the order xxx is now Confirmed" and one with "we confirm your order xxxx" with date and time; the content of the two mail is the same, so can i send only one of these two mail to the customer? How can i block the other mail?

Thanks

Hello,
Note that you can un-publish your email via "Hikashop->System->Emails" (available through the business version), or you can edit the hikashop_config table via phpmyadmin.