Extracting recipient mail address of auto-forwarded mail because of a rule action

I have an email rule which sends a full copy of the mail to another user XYZ whenever a mail is sent from a particular user ABC. Now, the process of auto-forwarding the mail I believe, occurs through a background agent. But now my problem is that I need to extract the mail address of the user to whom the copy of the mail is sent.

I need to use Lotus Notes APIs to do so. Is it possible to extract the mail address of the auto-submitted user? If so, any help on this is appreciated.