The Microsoft .NET framework provides two namespaces, System.Net and System.Net.Sockets for managed implementation of Internet protocols that applications can use to send or receive data over the Internet . SMTP protocol is using for sending email from C#. SMTP stands for Simple Mail Transfer Protocol . C# using System.Net.Mail namespace for sending email . We can instantiate SmtpClient class and assign the Host and Port . The default port using SMTP is 25 , but it may vary different Mail Servers .

The following C# source code shows how to send an email from a Gmail address using SMTP server. The Gmail SMTP server name is smtp.gmail.com and the port using send mail is 587 and also using NetworkCredential for password based authentication.

  SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

  SmtpServer.Port = 587;

  SmtpServer.Credentials =

new System.Net.NetworkCredential("username", "password");

using System;

using System.Windows.Forms;

using System.Net.Mail;

namespace WindowsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            try

            {

                MailMessage mail = new MailMessage();

                SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");

                mail.From = new MailAddress("your_email_address@gmail.com");

                mail.To.Add("to_address@mfc.ae");

                mail.Subject = "Test Mail";

                mail.Body = "This is for testing SMTP mail from GMAIL";

                SmtpServer.Port = 587;

                SmtpServer.Credentials = new System.Net.NetworkCredential("username", "password");

                SmtpServer.EnableSsl = true;

                SmtpServer.Send(mail);

                MessageBox.Show("mail Send");

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.ToString());

            }

        }

    }

}

Rz Rasel

AMORABOTI

If Error – Please Acknowledge Me. (Rz Rasel)

Labels: C Sharp