Hi all, Firstly, this is nothing to do with Freelists, or Newvision. The bounce is caused by someone using an incorrectly configured copy of Exchange server and the POP3 connecter, which is trying to bounce messages back to the list. The effected domains are: *@visioncenter.org Or vision@xxxxxxxxxxx If I was the moderator, I would remove these addresses from the list, then email them regarding what is happening, then its up to them to deal with the problem, and then resubscribe. I doubt they are getting the messages at present, anyway, as the connector doesn't know where to deliver the message to by the looks of things. Hope this helps, Andrew.