[ASP.NET] send mail

Rad bi napisal kodo za pošiljanje mailov v VB. NA netu sem našel en kup primerov in stvar tud napisal, samo ne znam pa pravilno definirat smtp.Host -- Dim smtp As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient
Uporabljam IIS- trenutno mam IP v default smtp serverju nastavljen na 169.254.70.124

smtp.Host = "169.254.70.124"

ne vem zakaj mi stvar ne deluje- upoabljam tud try pa catch pa mi ne vrne nobene napake

No celotna koda pa zgleda takole - Uporabljam System.Net.Mail class

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
'' this is the .net 2.0 smtp email code
Dim sFrom = TextBox1.Text.ToString()
Dim sTo = TextBox2.Text.ToString()
Dim sSubject = TextBox3.Text.ToString()
Dim sBody = TextBox4.Text.ToString()
Dim msg As New System.Net.Mail.MailMessage
Dim addressFrom As New System.Net.Mail.MailAddress(sFrom)
Dim addressTo As New System.Net.Mail.MailAddress(sTo)

msg.IsBodyHtml = True
msg.From = addressFrom
msg.To.Add(addressTo)
msg.Subject = sSubject
msg.Body = sBody
Dim smtp As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient
smtp.Host = "169.254.70.124"
smtp.Send(msg)
''smtp.Send(sFrom, sTo, sSubject, sBody)
Catch ex As Exception
Response.Write(ex.ToString())
End Try
End Sub

Hvala za pomoč

Aja..pa še to- v TextBox1 in TextBox2 vpisujem mail naslove pošiljatelja v obliki ime@gmail.com

..ne vem ali je to pomembno ampak vseeno


Pa še enkrat hvala za pomoč

Stvar sem naštimal tako kot si napisal. Direktorija C:\Inetpub\mailroot\Queue in C:\Inetpub\mailroot\Drop sta prazna.

Zdaj mi javi naslednji error:

System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed. at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine) at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine) at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller) at System.Net.Mail.SmtpReplyReader.ReadLine() 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) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at Web_Admin_sendmail.Button1_Click(Object sender, EventArgs e) in D:\Moji Dokumenti\Grega\ASP\ASP.NET\Test\Web\Admin\sendmail.aspx.vb:line 65

Upam da se bo kdo kaj znajdel iz tega. Jaz se po pravici povedano ne preveč. Mogoče mi je jasno samo to,da je conectiomn closed..kaj moram spremnit da bo stvar delala?

Hvala