Has anyone created a GF plugin to truly validates email addresses? I've found code out there that will do it, like this:
The code basically attempts to see if the email address is valid on the user's mail host. I can see why this might not be good (network delays, etc). But, in my case, we want to validate email addresses of people at one organization (Wheaton College).
If noone has done this, could you point me in the right direction for doing so? Should this be an entirely new kind of field in GF, or is it possible to add an option to the existing email field?