Send Email Using C Sharp

Send an email with SMTP | Send Gmail Using C#

using System.Net.Mail;//Namespace to include /// <summary>     /// This Function is to send email      /// </summary>     /// <param name="subject">Subject of Email</param>     /// <param name="body">Body of Email</param>     /// <param name="mailto">Receiver's Email Address</param>     /// <param name="userid">Sender's Email Address</param>     /// <param name="attach">Any aatchment to be send with email</param>     /// <returns>Return value if mail successfully sent</returns> public static string SendMail(string subject, string body, string mailto, string userid, Attachment attach)     {         SmtpClient client = new SmtpClient();         MailMessage mail = new MailMessage();         mail.To.Add(mailto);         mail.Bcc.Add("inderbhan@singsys.com");         mail.From = new MailAddress(userid, " ", System.Text.Encoding.UTF8);         mail.Subject = subject;         mail.SubjectEncoding = System.Text.Encoding.UTF8;         mail.Body = body;         mail.BodyEncoding = System.Text.Encoding.UTF8;         mail.IsBodyHtml = true;         mail.Priority = MailPriority.High;         mail.ReplyTo = new MailAddress(EmailAccount.EmailReplyTo);           mail.Attachments.Add(attach);         client.Port = 587;         client.Host = "smtp.gmail.com";         client.EnableSsl = true;         client.UseDefaultCredentials = true;         client.Timeout = 100000;         client.Credentials = new System.Net.NetworkCredential(EmailAccount.SMTPUserName, EmailAccount.SMTPPassword);         //client.Port = 25;         //client.Host = "localhost";         //client.EnableSsl = false;         //client.Timeout = 100000;         //client.DeliveryMethod = SmtpDeliveryMethod.Network;         try         {             client.Send(mail);             return "Email successfully sent.";         }         catch (Exception ex)         {             Exception ex2 = ex;             string errorMessage = string.Empty;             while (ex2 != null)             {                 errorMessage += ex2.ToString();                 ex2 = ex2.InnerException;             }               HttpContext.Current.Response.Write(errorMessage);             return ex.Message.ToString();         } // end try      }