We had our old server crash it was running Windows 2003. We upgraded the server now we are running Windows 2008 small business server with exchange 2007. Everything on the network works great except for the Outlook web access it works on the internal network fine but not outside of the network. I started running into the problem when I was connecting the bosses blackberry using Outlook web access it didn't want to of verify and then it would, two days later or so it would unverified very frustrating this is been going on for weeks. I have called blackberry multiple times they are useless Today I connected my iPhone I noticed that the only time the e-mail was consistently coming in was when I was remoted in with GoToAssist Express, I don't know if it's just the act of being logged into the server or the GoToAssist Express but it makes it work I can't figure out why. I have been working with this problem for three weeks now and hoping that it is something easy to fix. please help I've opened all these ports on the router I'm not sure if I'm missing any... • 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) • Port 3389 TCP/UDP – RDP • Port 143 TCP/UDP – IMAP • Port 135 TCP RPD EP • Port 55001 TCP RPD CA

Most of those ports you don't need. Certainly you don't need 135 - that has exposed your server to the Internet. If this is SBS - have you run all of the wizards to complete the configuration? It will also tell you what you need to open port wise. Run the SBS Best Practises tool. The link to download is here: http://exbpa.com/ Simon.Simon Butler, Exchange MVP Blog | Exchange Resources