Order Confirmation e-mail to client not sent

I use the Business version on Joomla 1.5. Since a couple of days (without me changing anythign in the last months), there are no order confirmation mails sent to the client anymore. The mail to the Admin however is still sent. All mails show as activated.

For more information I have attached a screenshot, showing the mails in case one is actually missing in the config (the site is in German, but I guess you could figure out if one is missing):




Also, I would like to include the payment information into the (now missing) e-mail if the client choses bank transfer as payment. How would I do that?

Are the orders confirmed ?
Are you talking about the order creation notifications or the order status notifications ?
Did you contact your hosting company to see if they didn't change something with their email server (that is used by your website to send the emails) ? Maybe they would have some information on why these emails are not being sent.

It is both the order ceration notification and the order status notification mails.

Got it. The $%/&$%!§$& Spam Filter!!!