i'm giving up, 2 days and still no light in my brain.
So, SBS 2011, latest SP's and updates, OWA, default config.
Dynamic DNS via No-IP.
Ports 80 and 443 on the FW are redirected to the Exchange server.
From the intranet everything's working fine, i can see my IIS7 welcome site as well as the http:\\local_server_name\owa
site, which redirects me to https:\\local_server_name\owa
, asks for the certificate and so on. I'm also able to see http:\\dyndns_entry
and the http:\\dyndns_entry\owa
(redirect to https as well, confirming cert etc.).
From the internet i can see my IIS7 welcome site under http:\\dyndns_entry
. But the adress http:\\dyndns_entry\owa
forwards me to https:\\dyndns_entry\owa
and DOESN'T ask for any cert or stuff, just bringing "The connection was reset".
If i disable SSL for OWA, it works just fine from the internet. But it wasn't my plan to do so.
I guess it's an easy call for an expert, but i really become desperate...
Thanks in advance!