Email Verification in asp.net

If you are just looking for client side email verification[^] might be a good place for you to start.

http://www.asp.net/security/videos/implement-the-registration-verification-pattern[^] could be useful to you as well.

If you are just looking for email validation, then a simple regex pattern would be sufficient for you to validate the email on the client side - http://msdn.microsoft.com/en-us/library/ff650303.aspx[^].

Hi

This May be help you

http://stackoverflow.com/questions/3045861/verifying-an-email-address-exist-in-c-sharp

thanx

Refer this thread
http://forums.asp.net/p/1146835/1860101.aspx#1860101[^]

Create a link (absolute production url) of your verification page with QueryString of encrypted UserName, when the user follows the link, decrypt the QueryString inside page_load event of verification page, and verify the user details, you can also put criteria like user must validate the link within an hour or in a day. search codeproject for email sending code if required.

Just generate a unique token (e.g. a GUID), put that in the email, and record it against the user somewhere. When you get a hit on the verification page, check the token that's passed in the query string against the user token for the current session (or, possibly better, look for any users with that verification token and log the current session in as them), and then clear the verified status.

I can't quite remember how ASP.net stores user information but I think you can extend the default user information; this page[^] may be helpful. Alternatively, if custom membership providers look like overkill, create a new table in your database which is for pending verifications, and look up in that instead – but in that case you will have to add a validation check on logging in to check that table, or put users by default into a role called something like PendingVerification which doesn't have access to most of the site.

you can send a verification code to your user as below:

using System;
using System.Net;
using System.Net.Mail;

namespace EmailVerificationExample
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                MailMessage message = new MailMessage();
                message.From = new MailAddress("sender@example.com");
                message.To.Add("recipient@example.com");
                message.Subject = "Verification Email";
                message.Body = "Click this link to verify your email address: [Verification Link]";

                SmtpClient smtp = new SmtpClient();
                smtp.Host = "smtp.example.com";
                smtp.Port = 587;
                smtp.Credentials = new NetworkCredential("username", "password");
                smtp.EnableSsl = true;

                smtp.Send(message);
                Console.WriteLine("Verification email sent successfully!");
            }
            catch (Exception ex)
            {
                Console.WriteLine("Error sending email: " + ex.Message);
            }
        }
    }
}

This code uses the MailMessage class to set the sender, recipient, subject, and body of the email, and the SmtpClient class to send the email. You will need to replace the placeholders sender@example.com, recipient@example.com, smtp.example.com, username, password, and [Verification Link] with the actual values before running this code.