Hi ISA Server works in integrated mode. Web requests work fine. When I enable IP routing, ping and trace route requests work fine too. But any other requests except HTTP and FTP (any ports except 21/20 and 80) do not work. I do not use any Internet-servers in my internal network. I tried to set "protocol rules"("applies to" - "any request"), then "IP packet filters", all rules in any direction. In any case - in firewall logs: Connect 13301 for port enabled in rules. Requests from Outlook Express do not work (SMTP, POP3, NNTP). Is MS FW Client needed for Outlook Express(W98/2K)? But I tried to use one - without effect.