I've received a couple suspicious emails, supposedly from Paypal, that refer to transactions I know nothing about. Paypal requests that any suspicious emails be forwarded to them at spoof@paypal.com. However, when I attempt to forward the fake email I get a Norton popup window that the delivery failed (screenshot attached). I've never seen this message with the thousands of emails I've previously sent from this account. Temporarily turning off antivirus auto-protect still resulted in the same message. I'm running the latest NIS 2012. Any suggestions?