Are you using your proxy as a firewall. I have the same config and use my proxy to block out any unwanted IPs works for me!! -----Original Message----- From: A.L Paul [mailto:alikanza@xxxxxxxxxxx] Sent: Friday, March 12, 2004 12:26 PM To: [ExchangeList] Subject: [exchangelist] Proxy security... http://www.MSExchange.org/ Hi y'all how are you today? This is my situation today,I use a windows NT server 4.0 with its respective proxy(It should be 2.0) and ms exchange 5.5 for mail. I urgently need someone to let me know of how I can secure both the exchange server and the proxy because I have worked at securing them but I still get black-listed for some reason. Any ideas are really welcome regards Paul. ------------------------------------------------------ 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 ------------------------------------------------------