hi Gautam, are behind a firewall? if so, you need to specify a rule that allows port 25 outbound.. it can also be a dns problem. to verify, go to http://www.dnsreport.com HTH Robby Lim Philippines Gautam <jkakkar@xxxxxxxxx> wrote: http://www.MSExchange.org/ hi We are not gettting any NDR but the theres a lot of Queue growth and i am also not able to telnet to port 25 from an external Ip thanks Gautam ------------------------------------------------------ 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: robby_lim23@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx --------------------------------- Do you Yahoo!? Yahoo! Mail - 50x more storage than other providers!