Question : Problem: iPhone SBS 2003 Connection Issues

I have SBS 2003, all works fine, it's a single server with exchange and everything on the one server.

I just got our iPhones, went through the wizard and it worked perfectly first shot.

But exernally to the office it dosn't work, it will not validate the account or get email. I know that my iPhone settings are correct because it works in the office.

I have searched and searched, I have all the firewall / port forwarding correct as far as I can tell, but it just won't work. I think it's going to be something simple, but I need to work it out.

Answer : Problem: iPhone SBS 2003 Connection Issues

I worked this out, turned out that some of the virtual directories were only accessible internally.

So to all those that say it doesn't work with Exchange 2003. It is simply not correct.

It is now working perfectly.

You can read more here.
http://dale.fraser.id.au/2008/08/apple-iphone-sync-with-sbs-exchange.html