Cookie remove for guest checkout

[and]

I'm using one page checkout in combination with virtual products.

 

When I start with a clear cache all is working fine, but when I order for second time with other email address (order virtual product with guest checkout) , the order detail page after payment gives a error.

The link is still pointing to the old mail address that is used for the first order.

I think because that email address is stored in cookies.

 

How to solve this problem?

 

Thanks