We have recently installed a Server within a clients off - SBS 2008 (2nd hand)
This is a fresh install and everything works fine apart from the owa externally, it works internally fine using either https://servername/owa
We can't even access the remote site from externally.
When we type in the static ip address into a browser it shows the IIS7 page for the http (port 80 redirect is working fine)
You would think it's an issue with the open ports but I have all the ports open on the Draytek 2830n router - 80,443,987 - i have even tested these on here - http://www.yougetsignal.com/tools/open-ports/
IIS seems to be running fine too, all the virtual directories are under the SBS Web Applications site and running.
I have even turned the server firewall off to see if that was blocking, still no luck.
Another strange thing is that when we open outlook a certificate pops up with autodiscover.domain.com as well as a few others of m.domain.com / mobile.domain.com / sites.domain.com - we do however have a RAPID SSL cert installed for remote.domain.com