Many folks "frontend" their Exchange servers with a unix/linux sendmail/qmail/exim/postfix server. The linux box becomes your central email "hub" for the enterprise and all email is properly "masked" to appear to come from a single ip. It is also a handy place to implement things like SpamAssassin, RBL's, and preliminary Anti-Virus and Attachment policy enforcement. Ray Dzek Network Operations Supervisor Specialized Bicycle Components -----Original Message----- From: Bryan D. Andrews [mailto:bandrews@xxxxxxxxxxxxxxxxxx] Sent: Monday, September 06, 2004 10:49 AM To: [ISAserver.org Discussion List] Subject: [isalist] Publishing an Exchange Server and email still going out through the default IP http://www.ISAserver.org I have posted in the past on this topic and no one seemed to have any ideas... Essentially our ip for our exchange server is xxx.xxx.xxx.150 but our default ip for isa is xxx.xxx.xxx.131. All our outgoing mail still appears to be coming from 131. Does the newest ISA help with this issue? Thanks! ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.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 Exchange Server Resource Site: http://www.msexchange.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 ISAserver.org Discussion List as: rdzek@xxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx