once again ports for SBS 2008

http://technet.microsoft.com/en-us/sbs/cc817589.aspx

You may need to open the following ports, depending on the services you want to make available:




Port 25 TCP – SMTP (Outgoing Exchange e-mail)

Port 80 TCP – HTTP

Port 443 TCP – HTTPS (RWW, OWA, remote desktop or Terminal Server sessions)

Port 987 TCP – External secure Companyweb access

Port 1723 TCP – PPTP (VPN)

If port 80 is not open, then you must specify https:// for RWW connections; otherwise if port 80 is open you can use http:// and the session will be redirected automatically to port 443. If your router is configured to use UPnP, the Internet Address Management Wizard (IAMW) will open port 80