We have a Microsoft Exchange 2003 server. We have an email list that is maintained in house of 150 outside email addresses. In this list we have about 8 bad email addresses. We have updated the list now, but that didn't help because an email message using that list was already sent out today. When the message hit our SMTP Internet connector queue, the queue gets clogged with many retry messages. I would think that there should only be about 8 retry messages, but that isn't the case. Our queue gets filled with tens sometimes hundreds of retrying messages from that one email. The worst part is that other messages entering the queue with valid email addresses don't get sent through the queue until the retry messages are gone, which in most cases is me deleting them from the queue. Are there settings in Exchange that I can tweak so emails with bad addresses don't hold up delivery of valid email messages? Zachary IT Professional