Sending Email through Gmail Crendentials

First create one class File with name MailHelper.cs

Place the code


public class MailHelper
{
    private const int Timeout = 180000;
    private readonly string _host;
    private readonly int _port;
    private readonly string _user;
    private readonly string _pass;
    private readonly bool _ssl;

    public string Sender { get; set; }
    public string Recipient { get; set; }
    public string RecipientCC { get; set; }
    public string Subject { get; set; }
    public string Body { get; set; }
    public string AttachmentFile { get; set; }



    public MailHelper()
    {
        _host = ConfigurationManager.AppSettings["MailServer"];
        _port = int.Parse(ConfigurationManager.AppSettings["Port"]);
        _user = ConfigurationManager.AppSettings["MailAuthUser"];
        _pass = ConfigurationManager.AppSettings["MailAuthPass"];
        _ssl = Convert.ToBoolean(ConfigurationManager.AppSettings["EnableSSL"]);
    }

    public void Send()
    {
        try
        {

            // We do not catch the error here... let it pass direct to the caller
            Attachment att = null;
            var message = new MailMessage(Sender, Recipient, Subject, Body) { IsBodyHtml = true };
            if (RecipientCC != null)
            {
                message.Bcc.Add(RecipientCC);
            }
            var smtp = new SmtpClient(_host, _port);

            if (!String.IsNullOrEmpty(AttachmentFile))
            {
                if (File.Exists(AttachmentFile))
                {
                    att = new Attachment(AttachmentFile);
                    message.Attachments.Add(att);
                }
            }

            if (_user.Length > 0 && _pass.Length > 0)
            {
                smtp.UseDefaultCredentials = false;
                smtp.Credentials = new NetworkCredential(_user, _pass);
                smtp.EnableSsl = _ssl;
            }

            smtp.Send(message);

            if (att != null)
                att.Dispose();
            message.Dispose();
            smtp.Dispose();
        }

        catch (Exception ex)
        {

        }
    }

}

Then place these line of code in Web..config file in appsettings


<appSettings>

<add key="MailServer" value="smtp.gmail.com"/>
<add key="Port" value="587"/>
<add key="EnableSSL" value="true"/>
<add key="EmailFromAddress" value="xxx@gmail.com"/>
<add key="MailAuthUser" value="xxx@gmail.com"/>
<add key="MailAuthPass" value="xxxxx"/>

</appSettings>


then For example forgot password

SendMail();//Method

 private void SendMail()
    {
        try
        {
            string body;
//place the text file in the appcode -> templates-> ForgotPass.txt
            using (var sr = new StreamReader(Server.MapPath("App_Data\\Templates\\") + "ForgotPass.txt"))
            {
                body = sr.ReadToEnd();
            }

            string name = Session["Name"].ToString();
            string username = EmailIdTextBox.Text;
            string password = Session["Password"].ToString();
            string subject = "Your  Password";
            string emailBody = String.Format(body, name, username, password);
            string sender = ConfigurationManager.AppSettings["EmailFromAddress"].ToString();
            var mailer = new MailHelper
            {
                Sender = sender, //email.Sender,
                Recipient = EmailIdTextBox.Text,
                Subject = subject,
                Body = emailBody,
            };
            mailer.Send();
        }
        catch (Exception ex)
        {
         
        }
    }