Working with System.Web.Mail but not with System.Net.Mail

Hi, i am having trouble sending e-mails using System.Net.Mail namespace while there is no problem with System.Web.Mail. I am  using remote smtp server with no authentication.  My code as shown below:

1    try
2 {
3 MailMessage message = new MailMessage();
4 message.BodyFormat = MailFormat.Html;
5 message.To = "";
6 message.From = "";
7 message.Subject = "Test Smtp";
8 message.Body = "TestMail 123";
10 SmtpMail.SmtpServer = "mail.mysmtpserver";
11 SmtpMail.Send(message);
12 Lbl1.Text += "Mail Sent Successfully!";
13 }
14 catch (Exception ex)
15 {
16 Lbl1.Text += ex.Message;
17 }
19 try
20 {
21 System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage("", "", "Test Subject", "Test 123 Content");
22 System.Net.Mail.SmtpClient mailClient = new System.Net.Mail.SmtpClient("mail.mysmtpserver");
23 mailClient.Send(message);
24 Lbl2.Text += "Mail Sent Successfully!";
25 }
26 catch (Exception ex)
27 {
28 Exception ex2 = ex;
30 while (ex2 != null)
31 {
32 Lbl2.Text += ex2.ToString();
33 ex2 = ex2.InnerException;
34 }
36 }

Error message from System.Net.Mail block:

System.Net.Mail.SmtpException: Command not implemented. The server response was: 5.5.1 Sorry, we do not support this operation at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) at TestMail.Page_Load(Object sender, EventArgs e)

Can anyone help please ?
5/9/2006 12:27:17 PM 93655 articles. 6 followers. Follow

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Did you try and leave the SmtpMail.SmtpServer blank? We work off a remote server. Do you have a relay setup with an exchange server?

SmtpMail.SmtpServer = "";

- km
"always here and always forever"
5/9/2006 1:22:21 PM

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