.NET Email Configuration: Web.config & Code

1. Web.config Email Settings

To enable email functionality in your .NET application, add the following SMTP settings in Web.config:

<configuration>
  <system.net>
    <mailSettings>
      <smtp>
        <network 
          host="smtp.yourserver.com" 
          port="587" 
          userName="your-email@example.com" 
          password="your-password" 
          enableSsl="true" />
      </smtp>
    </mailSettings>
  </system.net>
</configuration>

2. Sending Emails in C#

Use the following C# code to send an email using the .NET Mail class:

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

public class EmailService
{
    public void SendEmail(string recipientEmail, string emailBody)
    {
        string ourEmail = ConfigurationManager.AppSettings["OurEmail"];
        string smtpServer = ConfigurationManager.AppSettings["SMTPServer"];
        string emailPassword = ConfigurationManager.AppSettings["OurEmailPass"];

        MailMessage mail = new MailMessage
        {
            From = new MailAddress(ourEmail),
            Subject = "Message from mydomain.com",
            Body = emailBody,
            IsBodyHtml = false,
            Priority = MailPriority.High
        };

        mail.To.Add(new MailAddress(recipientEmail));

        SmtpClient smtp = new SmtpClient(smtpServer)
        {
            UseDefaultCredentials = false,
            Credentials = new NetworkCredential(ourEmail, emailPassword),
            EnableSsl = true
        };

        smtp.Send(mail);
    }
}

3. Troubleshooting Common Issues

• Authentication Failure: Check your SMTP username and password.
• Port Blocking: Use port 587 (TLS) or 465 (SSL) as per your provider.
• Firewall Restrictions: Ensure outbound traffic on the SMTP port is allowed.

By following these steps, you can successfully integrate email functionality in your .NET application.