also just did some testing and sent a test question to myself. The question email needs to have the product that the question relates to in the email. If the customer is on a product and they click the ask question about product we need to know which product it is.
they might just write, what sizes does it come in" or "how long for delivery" etc but we have no idea which product they are talking about unless the email tells us. Furthermore, it would be good if the product has a link to the product page on the website so the admin can click it to see which product it is quickly.