I've set up Sendmail to send double bounces to /dev/null but I'm still getting a large about of "Delivery failures" to my spambox, and each one of them has been scanned by OCR. According to my logs in the last 48 hours I've scanned 1.3 million incoming messages and the server is seriously bogged down, is there a way to set SA to not use FuzzyOCR on these types of messages?