Validating if the inputted email address is real,ASP.net

[Omg83191]

Hi,
Anyone who knows how to validate if the email inputted by the new user is a real one.

[Rabbit]

Real or just looks real? The former is usually done by sending them an e-mail with a link that they click to validate. The latter is usually done by looking for the component parts that make up an e-mail.

[Frinavale]

The later can be achieved using a Regular Expressions Validator.

-Frinny

[PsychoCoder]

And to help even more here's a good regular expression pattern to use:

^[a-z0-9_\\+-]+(\\.[a-z0-9_\\+-]+)*@[a-z0-9-]+(\\.[a-z0-9]+)*\\.([a-z]{2,4})$

[Frinavale]

I think the validator has a bunch of predefined regular expressions for email addresses and phone numbers and other things.

-Frinny

[Omg83191]

Guys thank you, Regular Expressions Validator is just for the email format, what I need is to validate if the email really exist because later on I need to send them emails.

[PsychoCoder]

Well that's a whole different situation (one you should have made when asking the question). What you do is you send a confirmation email to the address they provide with a link to confirm said address.

At least that's the road I'd go down.

Happy Coding!

[Omg83191]

Sorry I'm new with this, how can I do that?

[Frinavale]

There have been a couple of solutions suggested.
Which solution are you asking about?

-Frinny

[Omg83191]

How can I send a confirmation email to the address they provide with a link to confirm said address.

[Rabbit]

When they register, generate a random, unique key. E-mail the user with a link to a page that passes that key in the link. Create a confirmation page that takes that key and checks which e-mail it is tied to.