Ah okay.. That explains it. I am in the process of moving our domain from Network Solutions to Register.com because NS refuses to support reverse MX lookup (PTR). Sigh. Regards, Andrew ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx on behalf of Ollo Lloyd Sent: Mon 15/05/2006 3:27 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Exchange Que I recently had the same problem and was able to fix it by having my ISP create a PTR for my mail server. You may contact your ISP and make sure that the reverse lookup record exists and is correct. Ollo ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew English Sent: Monday, May 15, 2006 12:27 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Exchange Que A couple of issues: Some emails are not going out because "The remote server did not respond to a connection attempt", and "Unable to bind the destination server in DNS". How do I fix this problem? Thanks Regards, Andrew