c# – 如何检查电子邮件是否已成功发送？

这是我到目前为止的代码,它工作正常(来自谷歌)：

private void sendMail(string strToAddress,string strFromAddress,string strSubject,string strBody)
{
    // new instance of MailMessage
    MailMessage mailMessage = new MailMessage();

    // Sender Address
    mailMessage.From = new MailAddress(strFromAddress);

    // Recepient Address
    mailMessage.To.Add(new MailAddress(strToAddress));

    // Subject 
    mailMessage.Subject = strSubject;

    // Body
    mailMessage.Body = strBody;

    // format of mail message
    mailMessage.IsBodyHtml = true;

    // new instance of Smtpclient
    SmtpClient mailSmtpClient = new SmtpClient("mail.lablabal.com");

    // mail sent
    mailSmtpClient.Send(mailMessage);
}