Customer email address not accepted on free download sign up form.

Hey,

I am having trouble with a feature on a site currently in development. We have imported existing customers into the site and have created several products which have a free download file (All products are digital downloads).

New email addresses work fine and carry on through the automation to the email with the download link and are adding to the newsletter subscription but existing customers don’t. The page refreshes and doesn’t validate the form. The reason for the free download is to get increase the subscription list to the newsletter which most existing customers are signed for already. Any ideas on how to override the validation if an existing customer email is entered for the free download product?

Thank you Roty, the idea in point 2 is a workable solution. We will have the form on the page but a message stating that existing customers will need to login to download the free product. Thank you for the input, I really appreciate it.