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Email validation

jasmine dyaga

Joined: Apr 11, 2012
Posts: 8

Can anyone guide me in writing the code for email validation.
i.e when you register for a site,it should send an email verification to that particular email -id .

William P O'Sullivan
Ranch Hand

Joined: Mar 28, 2012
Posts: 859

Not a trivial task.

Accept email address from user.

Assign a unique id (GUID) to that email and store both fields in a database.

Build and Send the validation email (use sendmail api) and in the body put the url to click.
(This would pass the unique id as a parameter to a validation servlet)

Here's the fun part, once they click on the URL, you would need to know the email address of the clicker!
You can ask them to verify and the servlet then matches the passed GUID to the db entry.

Much work needed... but map out the flow first, using simply sequence diagrams or use cases.


Tim Moores

Joined: Sep 21, 2011
Posts: 2414
What William said

An additional concern: The URL should only be valid for a limited time - maybe a few hours, but no more than a day. So the GUID would need to have a timestamp associated with it that indicates its expiration.
I agree. Here's the link:
subject: Email validation
It's not a secret anymore!