describe YOURMESSAGEBOD It's great that our message did something; we don't care
score YOURMESSAGEBOD 2.5
-body NODELIVERY /could not be delivered/i
-describe NODELIVERY We don't care if it could not be delivered
+body NODELIVERY /(?could not be|has not been) delivered/i
+describe NODELIVERY We don't care if it could be or has not been delivered
score NODELIVERY 1.5
body NORESEND /do not resend your original message/i
describe NORESEND If you don't want us to resend our message, why tell us?
score NORESEND 2
+header PROOFPOINT from =~ /proofpoint/
+describe PROOFPOINT Automatic mail from proofpoint (some MTA thingie)
+score PROOFPOINT 3.5
+
body NOTPROCBOUNCE /was not processed by our system/i
describe NOTPROCBOUNCE Bounce by system that was not processed
score NOTPROCBOUNCE 2