Alex, I'm assuming that you can browse the internet from a client behind the ISA server. Test a telnet session from the ISA to port 25 and port 110 for the address pop3.uol.com.br Test from the client as well. With the firewall client installed on a client you should be able to telnet to your pop host without a problem. My firewall client is setup like yours however, I don't have the discovery box checked. For your web browser settings, remove the check marks under automatic configuration and try the tests above that way. -----Original Message----- From: Alex S. Pereira [mailto:9047.alexsp@xxxxxxxxxxxxx] Sent: Thursday, December 19, 2002 1:42 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: RES: POP3 & SMTP http://www.ISAserver.org Hi Friese, Yes, I have already created two protocol rules like you described, but I still can not send or receive emails via Outlook Express, I have just formated my server and installed Windows 2000 server and ISA Server again, but nothing changed, the symptoms and error messages are the following : 1- When I click on send&receive of Outlook Express, I receive the messages : * The host "smtp.uol.com.br"could not be found. Please verify that you have entered the server name correctly. Account: "pop3.uol.com.br", Server: "smtp.uol.com.br", Protocol: SMTP, Port 25, Secure (SSL):No, Socket Error: 11001, Error Number: 0x800CCC0D. * The host "pop3.uol.com.br"could not be found. Please verify that you have entered the server name correctly. Account: "pop3.uol.com.br", Server: "pop3.uol.com.br", Protocol: POP3, Port 110, Secure (SSL):No, Socket Error: 11001, Error Number: 0x800CCC0D. While the Outlook Express are trying to connect to server mail, I look at ISA Management and verify that don't have any session opened, it is correct ? 2- The settings for the Firewall Client and Web Browser from ISA Management are : * Firewall Client Properties : During setup, cofigure firewall client to connect to the ISA Server computer by : DNS Name The box "Enable ISA Firewall automatic discovery in firewall client" is checked. On Aplication settings I found an aplication Outlook with the key disable and value = 0 * Web Browser : The box "Configure Web Browser during Firewall client setup" is checked; The field DNS name is filled with the name of my ISA Server machine; Port 8080; On Automatic configuration all box is checked and the option "Use default URL" is selected I don't know what I can do, can you 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: cfriese@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')