1) We have [php] program in our web files ( , which forwards the visitor's form data to our E mail address) .
2) We have received E mail ( which does not have contents).
3) Wondering if some visitor submitted form data or no one submitted form data. Our website has form validation. Form can not be submitted unless visitor complete the form.
4) Double checked our website. It works fine.
5) Are there any way to identify the source which causes possible error or
to put some tracer based on the visitor's web browser each time when visitor does something on our website ?