Determine if an email message was sent

I am creating a webform to send an email message using the System.Web.Mail Namespace. When the user clicks the submit button and the message is actually sent I want to redirect them to a confirmation page letting them know the message was sent succesfly.

How can I determine if the message was sent succesfly.

Here is the code I have so far

Code:

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    Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click


        If (Page.IsValid) Then

            Dim newMail As New MailMessage

            Try

                newMail.From = txtSendersEmailAddress.Text
                newMail.From = txtSenderName.Text
                newMail.Subject = ddlQueryType.SelectedValue + " " + txtSubject.Text
                newMail.To = "[email protected]"
                newMail.BodyFormat = MailFormat.Text
                newMail.Body = newMail.From + newMail.Subject + txtMessage.Text
                SmtpMail.SmtpServer = "your.smtpserver.net.net"
                SmtpMail.Send(newMail)

          Catch ex As Exception

            Finally

                newMail = Nothing

            End Try

        End If

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if the email send fails... an exception should be thrown... so if you check for the exception (which you are doing) then you should be able to vary the output page from pass or fail simply by catching the error...

you may want to look at the MailMessage object on MSDN to see any specific errors it might throw if you want to determine the cause of the failure...

Is it possible to send a request for receipt of email using the MailMessage object?