Sending email's twice

Is there some known bug that makes UE sending the same mails twice? (ASP VBScript)

Maybe you are using the "Before page load" trigger and the page is loading twice because it has a form? No bug, but it is a common user error.

Oh, I do have 2 forms actually on the page, didn't realize that the page was loading twice because of this. This page is the confirmation page after the buyer has made the bank transaction (from ecart). What trigger should I use instead of "Before page load"?

I need these forms on this confirmation page.

Tried changing to "eCart: thenameofthecart is empty" but then it still sends 2 mails

The button press trigger for the button you want to trigger the email being sent.

I have no button on the page, nor should I.

If it isn't a bug, why is 2 mails sent (also) when I choose "eCart: thenameofthecart is empty" and putting code at the top of the page emptying the cart?

I'm not sure why without debugging your code. It is hard to answer these questions out of context, so I am trying my best.

I can only guess without looking at your files. My guess could be wrong.

I understand that it's hard to help with this little information. Also, I know my English isn't good enough to explain properly.
I've opened a support ticket on this matter, there I have attached the file sending the mails twice.
Thanks for your quick answers Ray. I really appreciate them.