无法连接邮件服务器是怎么回事?
SmtpClient smtp = new SmtpClient();
smtp.Host = "122.226.56.47";
smtp.Port = 23;
MailMessage mail = new MailMessage();
mail.From = new MailAddress("123456@qq.com");
mail.To.Add(new MailAddress("78910@qq.com"));
mail.Subject = "主题";
mail.Body = "邮件内容";
//mail.Attachments.Add(new Attachment("Attachment File Name"));
smtp.Send(mail);
传到租用的空间 显示:
由于目标机器积极拒绝,无法连接。 122.226.56.47:23 是怎么回事啊?