Email ID Validation
The objective here is to limit access to only users that have registered. Registration may happen on another web-site or service.
The attend links to logon to our webcast would pass the registrant’s email address to a hidden field in our logon form via a URL param.
We need to validate that the email address entered by the user matches the one passed into our hidden field via the URL param.
If we do not have a match, then give them a message:
Please logon with the same email address used during registration.
If you have not registered, please register now.
Note that the hyperlinked URL should be optional and would be unique for each form.
Note: If you have a better way of accomplishing this please let me know! The main security concern would be one user sharing their link but we would see on the reporting who is sharing their registration details and give them a verbal beating. 🙂