Hi,
I assume that you are using Outlook 2013 or 2016.
My macro will check if there is any mail in a special folder.
If there is a mail at that folder, it will open the mail, try to grap the link. If not found will give an alert and quit.
If it is able to grap the link. It will open the link copy the file and then rename it.
If this is what you want here is my offer.
Best Regards,