بازم مشکل ارسال Email

[nokhod]

سلام. شرمنده، سرچ کردم ولی جوابی پیدا نکردم.

کد ارسال من برای Email، کد زیره:



SmtpClient s = new SmtpClient("mail.mysite.com");
s.Credentials = new NetworkCredential("mymail@mysite.com", "******");
s.UseDefaultCredentials = false;
s.DeliveryMethod = SmtpDeliveryMethod.Network;
MailMessage msg = new MailMessage();
msg.From = new MailAddress(txtFrom.Text);
msg.Sender = new MailAddress(txtFrom.Text);
msg.To.Add(new MailAddress("myemail@gmail.com"));
msg.Body = txtBody.Text;
msg.BodyEncoding = Encoding.UTF8;
msg.IsBodyHtml = true;
msg.Priority = MailPriority.High;
msg.Subject = txtSubject.Text;
msg.SubjectEncoding = Encoding.UTF8;
s.Send(msg);


اما Error زیر رو میده:



Bad sequence of commands. The server response was: This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.


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