[JWait]

X-cart emails a "order notification" by default. I have never figured out what "Enable email notifications for customers about initially placed orders" does, as it doesn't seem to make a difference which way it is set about the order email.

When you go to check the order, what is the status? Normally it would be "Queued". If your payment gateway is somehow (I don't see how) changing the status to "processed" that is where the second email is coming from, and if the payment processor is sending your customer an email saying the card has been processed then the "order is processed" notification form x-cart is redundant.

It seems to me that you could stop the initial email from being sent, but this is the one all customers get (including those who choose to pay by some other method than credit card). What do you currently do for those customers? We manually process credit cards, and only do so when we are ready to ship, so we skip "Processed" and go directly to "Completed". We have changed the wording of "Processed" to send to customers that chose "check", "money order", or "phone order" to let them know their order has been "processed" and is waiting payment. We tell them not to send payment until receiving an email telling them to do so (this is it) just in case there is something out of stock or sold out.