The only way for outlook to log in from the outside (even though you already have the ip open) is to have several ports open at that address. However opening those ports blindly to the internet == BAD. Repeat after me... "I will not open up my network to hackers" Since you're using Exch2K, You would have really two options: 1) VPN and 2) OWA. Of course I guess you could do dial-up RAS but does anybody actually still use that stuff? :-) We use a combination of VPN & OWA here at our facility and have a number of users who travel frequently with laptops. Do you have any type of firewall in place besides the ISA server? Regards, Mike Liddekee Network Engineer Humco Holding Group, Inc. 7400 Alumax Dr. Texarkana, TX 75501 Ph: (903) 831-7808 ext 697 -----Original Message----- From: Varga Pavol [mailto:pavol.varga@xxxxxxxxxxx] Sent: Friday, September 05, 2003 1:11 AM To: [ExchangeList] Subject: [exchangelist] RE: External clients & firewall not in a domain http://www.MSExchange.org/ Hello Tom, we use M$Outlook 2000, and we want access ours mailboxes for e-mailing. Regards! Pavol. -----Original Message----- From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx] Sent: Thursday, September 04, 2003 9:44 PM To: [ExchangeList] Subject: [exchangelist] RE: External clients & firewall not in a domain http://www.MSExchange.org/ Hi Varga, What services do you want to access from the external Outlook client? What version of Outlook are you using? Thanks! Tom Thomas W Shinder <http://www.isaserver.org/shinder> www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: <http://tinyurl.com/1llp> http://tinyurl.com/1llp -----Original Message----- From: Varga Pavol [mailto:pavol.varga@xxxxxxxxxxx] Sent: Thursday, September 04, 2003 2:29 PM To: [ExchangeList] Subject: [exchangelist] External clients & firewall not in a domain http://www.MSExchange.org/ Hi all, please, how to configure firewall (which is not in domain) and Exchange 2k Server (with internal IP) to allow external client access to their mailboxes? I have already set: Exchange 2k Server - Active Directory\Users\Properties\Dial-in\Remote Access Permission (Dial-in or VPN)\Allow access & No Callback ISA Server (firewall & proxy server, not in a domain) - Access Policy: Mail wizard rule SMTP, SMTPs outgoing smtp, pop3, imap4 ssh, imcp, dns + IP Packet filters VPN (PPTP, L2TP), DHCP, DNS, ICMP I was trying also to configure Outlook account with external IP of firewall = Outlook could not logon. Is VPN configuring both client and servers only way to resolve it? And how? Thank for any advice. ------------------------------------------------------ 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 ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: pavol.varga@xxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ 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 ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mliddekee@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')