#region 邮件发送
/// <summary>
/// 发送邮件支持HTML格式 先引用System.Net.Mail;
/// </summary>
/// <param name="MailFrom">发送人Email 如demo@126.com</param>
/// <param name="MailServer">邮件服务器 如mail.126.com</param>
/// <param name="MailUserName">登陆用户名 如demo@126.com</param>
/// <param name="MailPassword">登陆密码 如123456</param>
/// <param name="mailto">收件人邮箱</param>
/// <param name="title">邮件标题</param>
/// <param name="msg">邮件正文</param>
/// <returns>成功 true; 失败 false</returns>
public static bool SendSmtpEmail(string MailFrom,string MailServer,string MailUserName,string MailPassword,string mailto,string title,string msg)
{
  var client = new SmtpClient();
  client.Host = MailServer;
  client.UseDefaultCredentials = false;
  client.Credentials = new System.Net.NetworkCredential(MailUserName, MailPassword);
  client.DeliveryMethod = SmtpDeliveryMethod.Network;
  System.Net.Mail.MailMessage message = new MailMessage(MailFrom, mailto);
  message.Subject = title;
  message.Body = msg;
  message.SubjectEncoding = System.Text.Encoding.UTF8;
  message.BodyEncoding = System.Text.Encoding.UTF8;
  message.IsBodyHtml = true;
  message.Priority = MailPriority.High;
  message.IsBodyHtml = true;
  try
  {
   client.Send(message);
   return true;
  }
  catch
  {
   return false;
  }
}
#endregion