Which is where the recommendation for RPC/HTTP came in. If you haven't had a look, that's what it's designed for. Al -----Original Message----- From: A. Michael Salim [mailto:msalim@xxxxxxxxxxxx] Sent: Friday, October 31, 2003 3:28 PM To: [ExchangeList] Subject: [exchangelist] RE: Setting up a "MS Exchange Server" account across Internet for Outlook across Internet for Outlook http://www.MSExchange.org/ Hi, > Exchange needs port 135, as an RPC port. Using ISA server allows > opening this port securely. So if I installed ISA server and opened up this port, tnen my clients would still need to open port 135 at their end right? I very much doubt if I could convince any clients to open up those ports at their end through their firewalls, even to my dedicated IP addresses. Also, I seem to recall there are other companies offering these services that do not require their clients to open up port 135 etc. best regards Mike ------------------------------------------------------ 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 ------------------------------------------------------