Send Mail using ASP.NET

These steps are given below.

Step 1 : First of all we have to create a new Web Application ; let us see the description with images of how to create it.

• Open Visual Studio 2010
• File>New>Project
• Choose Visual C#> Web > Select ASP.NET Empty Web Application

Step 2:  Add new ASPX Page

Step 3: Design Page like

Step 4: Add below code on button click

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Mail; 

namespace WebApplication1
{
     public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        { 

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            SendEmail("[email protected]", "xyz123", Text1.Text, Text2.Text, Text3.Text, Text4.Text);
        } 
        private void SendEmail(string UserId, string UserPassword, string To, string Cc, string Subject, string Body)
        {
            MailMessage myMail = new MailMessage();
             string smtpserver = "smtp.gmail.com"; 
            //Below SMTP Setting for gmail you can set for other domain also.
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver", smtpserver);
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserverport", "587");
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing", "2");//sendusing: cdoSendUsingPort ==>> value
2, for sending the message using the network.
             //smtpauthenticate: Used when authenticating to an SMTP service over the network
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");//Use 0 for anonymous and 1 for
Registered
             //Send Mail using the sendusername and sendpassword fields.
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", UserId);
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", UserPassword);
             myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpusessl", "true"); // gmail server requires an encrypted
connection (SSL) Set True else Set False 

            myMail.From = UserId;
            myMail.To = To;
            myMail.Subject = Subject;
            myMail.Body = Body;
            SmtpMail.SmtpServer = smtpserver;
            SmtpMail.Send(myMail);
        }
    }
}

NOTE: You can send E-Mail from any domain using the SMTP Setting above code is for GMAIL.