For the record, I just had a list message blocked by SORBS and resent it immediately and it went through. The copy that bounced went through the mail server with the IP address of: 64.12.78.142 and the one that worked was sent through: 64.12.78.137. I got lucky the second time around. The one that got blocked: ----- The following addresses had permanent fatal errors ----- <senior-newbie@rootsweb.com> (reason: 550 5.7.1 <senior-newbie@rootsweb.com>... Rejected: 64.12.78.142 listed at dnsbl.sorbs.net) The one that went through about one minute later: Received: from imo-ma02.mx.aol.com (imo-ma02.mx.aol.com [64.12.78.137]) Joan