>The system asks for authentication and refuses it. We have read somewhere that "Exchange 2007 does not support cdo functionality" anymore:
>
>(quote)
>Use Windows Workflow Services (WWS).
>
>MAPI client and CDO 1.2.1 on the Exchange installation
>
>
>Exchange 2007 no longer depends on these components. They are a separate component that will be available for download.
>(unquote)
>
>in http://www.petri.co.il/exchange_2007_discontinued_features.htm

I'm confused on which CDO version you're using? The cdosys.dll is CDO 2000 not CDO 1.2.1.