>Does anybody know how to get a delivery status notification back using CDO with a SMTP server. I've set the DSNOptions property of the CDO.message object to 4 (Returns a delivery status notification if delivery succeeds) and haven't been able to get any notifications back to my sending email address.

John,

It's not enough to request delivery notification. In addition mail server on the other end has to support this feature and it has to be turned on on the mail server and for specific user.