Sending email in ASP.NET using SMTP configuration from web.config

Configure your email settings in Web.Config with your account details.

<system.net>

<mailSettings>

<smtp>

<network host="smtp.gmail.com" port="25" userName="youremail@gmail.com" password="yourpassword" defaultCredentials="false"/>

</smtp>          

</mailSettings>

</system.net>    

Send email with above SMTP settings like this

protected void Button1_Click(object sender, EventArgs e)

    {

        MailMessage msg = new MailMessage("frmid@yourdomain.com", "tomailid@anydomain.com");

        SmtpClient mailClient = new SmtpClient();

        //Assign your Mail Body text

        msg.Body = "test mail body";

        //Assign Subject of the e-mail

        msg.Subject = "subject";       

        mailClient.EnableSsl = true;

 //if you use yahoo then change mailClient.EnableSsl = false;

       //Send mail using Web.config setting

        mailClient.Send(msg);

    }