OK, now we are getting some where. In Outlook, how do you have the SMTP server configured, by IP address or FQDN like mail.domain.com? Since you are setting up the client as a Web Proxy client, did you configure Outlook to use the same setting as Internet Explorer? How is the client configured for DNS settings? John Tolmachoff Engineer/Consultant/Owner eServices For You -----Original Message----- From: Ramakrishna Y [mailto:ram@xxxxxxxxxxxx] Sent: Thursday, November 20, 2003 9:31 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Restrict Clients based on MAC address http://www.ISAserver.org Ok.. I'll Uninstall IIS completely. I studied that IIS should not be installed. But to test the mail part, I've done that. I did not define any outbound rules for SMTP. I created a rule for all Protocols which means it should do for SMTP also. So I configured one client(Win 98) to Web Proxt settings and was able to browse the internet. When I configure the Outlook , the mails are neither going out not comming in. This is the problem Ram