When I try to block access to a domain or an ip in IIS SMTP it does not work. If I blocked mx19215.ee02.com from delivering email it still would deliver it and the log entry below would be in the IIS log: 2004-12-13 14:06:27 127.0.0.1 mx19215.ee02.com SMTPSVC1 RAS1 10.60.48.8 0 EHLO - - I have ISA Server 2000 on the box and all incoming SMTP traffic comes in to the IIS SMTP virtual server. Domains are being resolved to 127.0.0.1 no matter what domain it is. -----Original Message----- From: Andy Arnold [mailto:AArnold@xxxxxxxxxxxxxx] Sent: Monday, December 13, 2004 5:14 AM To: [ExchangeList] Subject: [exchangelist] [exchangelist]RDNS http://www.MSExchange.org/ I have ISA 2000 on my gateway system. I have IIS configured as a SMTP and have it relaying for just my domain. I have DNS lookup turn on the IIS SMTP. In the IIS logs it always shows a RDNS value of 127.0.0.1 no matter what server submits emails. How can I get the RDNS lookup on the IIS SMTP to actually look up the sending domain's ip address? Andy Arnold MCT since 2002 , MCSD VB6/VB.NET, MSDBA SQL 7/SQL2000, MCSA 2000/2003, MSCE NT4/2000/2003, MCAD VB.NET, MCSA MESSAGING 2000/2003, MCP NT4/2000/2003, LAN,A+ PCC Airfoils, LLC. ------------------------------------------------------ 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: aarnold@xxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx **************************************************************************************************************** IMPORTANT NOTICE: The non-public information contained in or attached to this message is the confidential, proprietary information of PCC Airfoils, LLC. In addition to any restrictions that may apply pursuant to the terms of Confidentiality or Non-Disclosure Agreements between PCC Airfoils, LLC and the recipient, this information may not be reproduced, disclosed to any third party, or used by the recipient except for the specific purpose for which it was provided, without the prior written approval of PCC Airfoils, LLC. U.S. export laws may also apply to the information contained in or attached to this message. Export or re-export of this information is prohibited. Please do not read this message if you are not the intended recipient. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we cannot accept responsibility for any loss or damage arising from the viruses in this e-mail or attachments. ****************************************************************************************************************