How to send mail using Gmail SMTP in .net Windows application(C#)

Step 1:

Create Five Textboxs  and Button

Step 2:

Please type the code in send button click event

private void btnSend_Click(object sender, EventArgs e)

        {

            try

            {

                MailMessage Msg = new MailMessage();

                // Sender e-mail address.

                Msg.From = new MailAddress(txtUserName.Text);

                // Recipient e-mail address.

                  Msg.To.Add(txtTo.Text);

                  Msg.Subject = txtSubject.Text;

                                       

                    // your remote SMTP server IP.

                    SmtpClient smtp = new SmtpClient();

                    smtp.Host = "smtp.gmail.com";

                    smtp.Port = 587;

                    smtp.Credentials = new System.Net.NetworkCredential(txtUserName.Text, txtPassword.Text);

                    smtp.EnableSsl = true;

                    smtp.Send(Msg);

                    Msg = null;

                    MessageBox.Show("Mail sent");

                    // Page.RegisterStartupScript("UserMsg", "<script>alert('Mail sent thank you...');if(alert){ window.location='Default.aspx';}</script>");

                }

            

            catch (Exception ex)

            {

                Console.WriteLine("{0} Exception caught.", ex.Message);

            }

        }

Step 3:

                 Run the Program

Message Will Send