Mail læst med CDO.Message??

Hjælp... Hvordan får jeg mit "send mail" script til at anmode om "læst mail" til min mail?

Jeg forsøgt med :
   
Mail.Configuration.Fields.Item _
("urn:schemas:mailheader:disposition-notification-to") = "min@mail.dk"

-----Og-----
   
Mail.Fields("urn:schemas:mailheader:disposition-notification-to") = "min@mail.dk"
   
Men ingen af disse virker :( Her er "Mail scriptet":

<%
Set Mail = CreateObject("CDO.Message")

Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpserver") ="smtp.gmail.com"
Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 465

Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = 1

Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60

Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = 1
Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendusername") ="username@gmail.com"
Mail.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendpassword") ="yourpassword"

Mail.Configuration.Fields.Update

Mail.Subject="Email subject"
Mail.From="from@domain.com"
Mail.To="to@domain.com"
Mail.TextBody="This is an email message."

Mail.Send
Set Mail = Nothing
%>