Hi, Thanks for your replay, but I don't use firewall client just for this purpose, I really Would like to use Firewall Client, but I followed your suggestion: 1 - I removed the firewall client. 2 - I configured the gateway of my machine for the IP address of ISA's internal board. 3 - I created a protocol rule called Allow All with All IP traffic allowed for any request and a content rule for all destinations. But I still can access any Web site and can not access the mail server. Any suggestions, Thanks, Alex ----- Original Message ----- From: "Alex Decarli" <alex@xxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Wednesday, December 18, 2002 9:48 AM Subject: [isalist] RES: POP3 & SMTP http://www.ISAserver.org First, if you use the firewall client to this purpose, uninstall it. All client machine should be SecureNAT Clients (Default gateway should be internal IP address of ISA Server) create a protocol rule called (for example) allow Outlook Express, select smtp and pop3 protocol and appy to IP addresses of these computers. Create a site and content rule with the destinations of mail servers.... Hope this Help, ALEX -----Mensagem original----- De: Alex S. Pereira [mailto:9047.alexsp@xxxxxxxxxxxxx] Enviada em: quarta-feira, 18 de dezembro de 2002 09:26 Para: [ISAserver.org Discussion List] Assunto: [isalist] POP3 & SMTP http://www.ISAserver.org Hi, I have just created a my first ISA Server, but I have a great problem, my clients access email via pop3/smtp using Outlook Express, the clients are behind my ISA Server and the mail server on Internet, I can access any WebSite but can not access the mail server, the client machine have Firewall Client installed. Anyone can help me ? Thanks, Alex List Sponsored by Aspelle Aspelle's Microsoft-centric, Aspelle Everywhere, leverages ISA server and the Internet to quickly and cost-effectively manage and deliver secure, client-less access to all corporate applications (Web, Unix, Windows and legacy systems), for all users. More info at http://www.aspelle.com/info ------------------------------------------------------ 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 ------------------------------------------------------ Exchange Server Resource Site: http://www.msexchange.org/ Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: alex@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') List Sponsored by Aspelle Aspelle's Microsoft-centric, Aspelle Everywhere, leverages ISA server and the Internet to quickly and cost-effectively manage and deliver secure, client-less access to all corporate applications (Web, Unix, Windows and legacy systems), for all users. More info at http://www.aspelle.com/info ------------------------------------------------------ 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 ------------------------------------------------------ Exchange Server Resource Site: http://www.msexchange.org/ Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: 9047.alexsp@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')