Did you ever find the solution to this?
> Hi everyone!
>
> I am working with a small business server that is running Win 2000
server,
> IIS 5, and Exchange server. I have been trying to develop an email
> program using CDO but keep receiving the follow error message:
>
> ?A trappable error occurred in an external object. The script cannot
> continue running.?
>
> I am giving up using CDO and want to use CDONTS. I read somewhere that
> when exchange server is installed, it overwrites the SMTP services of
> IIS. However, I read elsewhere that if I install Exchange Server IMS
and
> Install the IIS SMTP service I can use CDONTS.
>
> Is this information true? If not, is there a way to use CDONTS with
> Exchange Server.
>
> Thanks,
>
> Given up on CDO