Sort of related to Whitelisting abuse and <>

Hi, I'm looking at the feasibility of using all_spam_to for my local abuse@ addresses. Since abuse@ is intended as reporting mechanism about local abusers I don't want mail sent to the local abuse addresses scanned/binned by SA. Am I opening myself up to problems? Is there a better way to do i

Whitelisting abuse and <>

What are the steps to whitelist email sent from <> (i.e. Postmaster when bouncing mail) or [EMAIL PROTECTED] Thanks, -Philip