Is there a way to replace this small image used to track emails with e.g. our company logo? Currently, when the customer receives the email and clicks on "Open images" he/she doesn't get anything except the 1x1 pixel image and will probably quickly realize that it is there for email tracking. So is it possible to replace this image with anything else that the customer can find useful / nice and the customer doesn't get that this was all for track her/him opening the email?

Thanks!

Robert