string SMTPSERVER = "smtp.gmail.com" int PORTNO =25; SmtpClient smtpClient = new SmtpClient(SMTPSERVER, PORTNO); smtpClient.EnableSsl = true; smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; smtpClient.UseDefaultCredentials = false; //smtpClient.Timeout = 1500000000; smtpClient.Timeout = int.MaxValue; smtpClient.Credentials = new NetworkCredential(gmailUserName, gmailUserPassword); using (MailMessage message = new MailMessage()) { message.From = new MailAddress(gmailUserName); message.Subject = subject == null ? "" : subject; message.Body = body == null ? "" : body; message.IsBodyHtml = isBodyHtml; foreach (string email in emailToAddress) { message.To.Add(email); } if (ccemailTo != null && ccemailTo.Count > 0) { foreach (string emailCc in ccemailTo) { message.CC.Add(emailCc); } } foreach (string str in LstAttachment) { message.Attachments.Add(new Attachment(str)); } try { smtpClient.Send(message); return "Email Send SuccessFully"; } catch (TimeoutException ex) { Thread.Sleep(5000); try { smtpClient.Send(message); return "Email Send SuccessFully"; } catch { return "Email Send failed"; } } catch (Exception e) { return "Email Send failed"; } }
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