public void SendEmail(string smtpClient_add, int port_no, string username, string password, string fromEmail, string fromname, string Email_subject, string Email_body, string toEmail, string ccEmail, string pathToAttachment)
{
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient(smtpClient_add);
mail.From = new MailAddress(fromEmail, fromname);
mail.To.Add(toEmail);
if (ccEmail != "")
mail.CC.Add(ccEmail);
mail.Subject = Email_subject;
mail.Body = Email_body;
mail.IsBodyHtml = true;
if (pathToAttachment != "")
mail.Attachments.Add(new Attachment(pathToAttachment));
SmtpServer.Port = port_no;
SmtpServer.Credentials = new System.Net.NetworkCredential(username, password);
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
}