the setup : My hostname :pfcindia.local , IP: Public ip , DNS : primary : Same as the machine'sIP , Secondary : The DNS provided by the ISP Dishnet DSL. The machineis also the Domain Controller .I have installed all three roles onthe same box. I have not added anything into the DNS setting ( ForwardZones , Or reverse pointer records). Now I have configured the Send Connector Specify the FQDN this connector will provide response : address : TYpe : SMTP Address : * * Include all subdomains : checked cost : 1 Network : Route Mail through the Follolwing Smart Hosts : Smart Hosts: Now the question is it asks for IP address or the FQDN what should igive : ??? . I have a public IP with me and a domain name which isalso hosting a public site . The domain pfcindia.com is registeredwith Net4india. I am pasting the error message in OWA Diagnostic information for administrators: Generating server: EX2007.pfcindia.local jpsingh610@rediffmail.comvastu3.nic.in #553 5.1.8 <jpsingh1@pfcindia.local>... Domain of senderaddress jpsingh1@pfcindia.local does not exist ## Original message headers: Received: from EX2007.pfcindia.local ([2002:3a44:27e6::3a44:27e6]) byEX2007.pfcindia.local ([fe80::1af:e6a1:c4dc:933e%10]) with mapi; Sun, 18 Oct2009 12:11:24 +0530From: jpsingh1 <jpsingh1@pfcindia.local>To: "jpsingh610@rediffmail.com" <jpsingh610@rediffmail.com>, "arjun1.b@tcs.com" <arjun1.b@tcs.com>Date: Sun, 18 Oct 2009 12:11:23 +0530Subject: This is a test mailThread-Topic: This is a test mailThread-Index: AQHKT74CjsVBY0w/I0m1w2qYbOsE3g==Message-ID: <6A95B4E10E2CED4EADB82523020FF1E940EE79D5D4@EX2007.pfcindia.local>Accept-Language: en-USContent-Language: en-USX-MS-Has-Attach:X-MS-TNEF-Correlator:acceptlanguage: en-USContent-Type: multipart/alternative; boundary="_000_6A95B4E10E2CED4EADB82523020FF1E940EE79D5D4EX2007pfcindi_"MIME-Version: 1.0

Please see below http://www.shudnow.net/2008/11/08/exchange-2007-mail-flow-dns-records-connectors-and-tls/Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|