Outlook voting buttons - MailMessage class

[silentthread]

Hi,

Does anyone know if it's possible to add a custom header to the MailMessage class in vb.net for voting buttons?

I was able to add a custom header for "Reply-to", and send the email, but I need to know if it's possible for vb.net.

Should I be using other classes or components for this?
Here is sample code....

Imports System.Web.Mail
 
Module Module1
 
    Sub Main()
 
        Dim message As New MailMessage
        message.To = "[email protected]"
        message.From = "[email protected]"
        message.Subject = "test"
        message.Body = "test"
        message.Headers.Add("?", "?") 'what goes here?
 
        Dim email As SmtpMail
        email.SmtpServer = "mail.bubba.com"
 
        email.Send(message)
 
    End Sub
 
End Module