What is your server and IP address? If it is mail.durdans.com, you are fine. http://www.dnsstuff.com/tools/ip4r.ch?ip=202.124.167.186 John Tolmachoff Engineer/Consultant/Owner eServices For You -----Original Message----- From: tissera [mailto:tissera@xxxxxxxxxxx] Sent: Thursday, January 01, 2004 9:55 AM To: [ExchangeList] Subject: [exchangelist] RE: Third party relaying http://www.MSExchange.org/ Hi. Thanks replying me As this relying , my server is blaklisted in asite .How can I solve this. thanks Tissera -----Original Message----- From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] Sent: Thursday, January 01, 2004 11:36 PM To: [ExchangeList] Subject: [exchangelist] RE: Third party relaying http://www.MSExchange.org/ Ah, the % hack. A message addressed as follows will allow a relay: Joeblow%remotedomain.moc@xxxxxxxxxxxxxxx <mailto:Joeblow%25remotedomain.moc@xxxxxxxxxxxxxxx> , where your server answers for localdomain.moc, when it recives a message addressed as shown, it will turn around and deliver it to joeblow@xxxxxxxxxxxxxxxxx IMHO, some of this has to be blamed on Netscape, as the % function is there to be compatable with their software. But in doing so, allows for relaying. The spam software I use (not on an Exchange box) has a specific test for this. I am not sure how to protect against this on Exchange. John Tolmachoff Engineer/Consultant/Owner eServices For You -----Original Message----- From: tissera [mailto:tissera@xxxxxxxxxxx] Sent: Thursday, January 01, 2004 9:19 AM To: [ExchangeList] Subject: [exchangelist] Third party relaying http://www.MSExchange.org/ http://www.MSExchange.org/ Hi all I need some help , I'm running MS Exchange 5.5 with service pack 3 on Windows 2000 server with service pack 4.The trouble is Third party relaying. I made the changes according Preventing <http://www.msexchange.org/tutorials/Preventing_Third_Party_Relaying_In_MS_E xchange_Server_55.html> Third Party Relaying In MS Exchange Server 5.5. Date - Mar 18, 2002 Author - Lee Derbyshire <http://www.msexchange.org/Lee_Derbyshire/> , which is on your web. But following types are still relaying. Somebody@[Domain IP] e.g.: somebody@[192.168.100.100] When telnetting following one, anybody%anydomain.org Anybody please help me to solve this problum thanks Lettah ------------------------------------------------------ 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: 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 ------------------------------------------------------