Dear Denis, I had this situation also, the main thing that , My exchange server was configured to forward all the mail to SMART HOST of ISP in Saudi Arabia, Then all of my users came to my office and said that , the people who they sent message to them , they did not receive any thing. I looked to the queue , I found that 500 MSG in the queue . I called the ISP, I informing him about my problem, then he was having some problems with his Smart host. I recommend you to make connector for each domain, and configure this connector to forward to DNS of The ISP you have it with you . So Try this solution, it will work Perfect -----Original Message----- From: Denis N Fedorus [mailto:fdn@xxxxxxxxxx] Sent: 07 ?? ?????, 1425 10:59 ? To: [ExchangeList] Subject: [exchangelist] Unable to bind to the destination server in DNS http://www.MSExchange.org/ Hello list! My exchange 2000 server sp3, can't send mail to some domains, such as aol.com, yahoo.com When I open the queues properties for this domain, I see non-delivery reason "Unable to bind to the destination server in DNS" Most of other domain are working propely.. When I'm trying to find MX serever for theese domains, I get the following: C:\nslookup Default Server: ################## Address: 10.1.###### > set type=mx > aol.com Server: ################### Address: 10.1.##### aol.com primary name server = dns-01.ns.aol.com responsible mail addr = hostmaster.aol.net serial = 2005011301 refresh = 1800 (30 mins) retry = 300 (5 mins) expire = 604800 (7 days) default TTL = 600 (10 mins) > If someone had faced such a problem, please advise something Sincerely Denis N Fedorus ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: mtantawi@xxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx