Attachments not wanted on undeliverable

Is there a way to stop attachments from coming back when a message is undeliverable under MS Exchange 5.5 SP3?

We sent out some emails for a mailing list and some have come back, lots actually, and they have the original attachment. It is filling up our Exchange database. It is unmanagable to try to put them in Personal folders. All I need is the body of the undeliverable with the email address that it couldnt resolve, nothing more. Any help?

Thanks