Creating a simple web application that will gather information, like name, address, email, etc. and submit it into a database for use with an online contest.
The client has asked if there is a way to verify that the email address the user submits is, in fact, a functional email address. So not just to validate that its formatted correctly, but actually like sending a 'ping' to the email address in order to receive some kind of a response if its valid?
Is this possible? I assume not - but don't know for sure.