PRB: Path Not Found When Using CDONTS with IMC

If you have a configuration where, Microsoft Exchange server and Internet Information server (IIS) are installed on the same computer and the Internet Mail Services (IMS) from Microsoft Exchange server is being used to deliver SMTP messages, you might get the following error message when trying to send e-mail using the CDONTS.NewMail object:

When the Windows NT 4.0 Option Pack was installed on your server, it installs CDONTS. CDONTS, by default, is configured to use the Inetpub\Mailroot folders to send and receive e-mail. However, these folders do not exist unless the IIS SMTP service is also installed.

In the configuration mentioned in the SUMMARY section, IIS SMTP service is missing.

To resolve the missing IIS SMTP service, you need to set the pickup directory for CDONTS to the IMCDATA directory used by your IMS. Therefore, the messages created by CDONTS will be delivered by the Exchange IMS. One method to do this is to first install the IIS SMTP service, and then disable it.

• 
  
• Start the Windows NT 4.0 Option Pack setup.
• Select the option to install the IIS SMTP service.
• You will receive a message informing you that you can either have this or your IMC. You need to click OK and continue as you will not be using this IIS SMTP service. (NOTE: You are using this setup just to configure the pick up directory.)
• After you continue with the setup, you will receive a dialog box prompting you to enter the pickup path. By default, the pickup path is set to Inetpub\Mailroot.
• Change this to point to your IMCDATA folder.
• Continue with the Windows NT 4.0 Option Pack setup.
• You will need to stop the IIS SMTP service because you will not be using it since the Exchange IMS will be handling the message delivery for the messages created by CDONTS.

This behavior is by design.