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Or has anybody get Exc2000 gets run behind a application firewall or NAT-firewall? I know of an installation of Exchange Server 2000 running Outlook Web Access through a NAT firewall (xBSD-based router appliance) as an https service.

Sadly I don't know the configs that make it work.

I got such a setup running on my lan at home. All it took me was to forward port 443 on my firewall (SuSE 7.3) to the internal Exchange 2k Server: iptables -t nat -A PREROUTING -p tcp --dport 443 -i ppp0 -j DNAT --to 192.168.0.100:443 Nothing needed to be changed on the Exchange machine. So I really don't what that stuff about changing the internal Script the Exhange Srv is all about. c ya Joerg