Hello,
We recently had a power cut and the servers went down. We have had this before and bringing them up in the correct order normally resolves any issues.
We have the following config
SBS2011 hosting all email and file storage
Server 2008 R2 purely as a TMG single nic configuration (this is in the DMZ on the router)
Server 2008 R2 purely as a web server
The TMG seems to be the issue here and I cannot find/understand where the issue is. I have 2 web forwarders using a listener on port 80, they work without issue.
I have published OWA and Outlook Anywhere and it is with these and any email functionality externally.
If I test the OWA rule it connects and verifies OK and if I go directly to the SBS2011 server /OWA I get the outlook web view. Even testing with the remote web workspace works as long as I go directly to the SBS2011.
If I try externally there is a 404 error displayed, no attempt at the authentication, there is also a failure for any attempt to request any synchronisation of mail.
I have tried using the logging in TMC but it doesn't show any attempts, that I can see, to access the OWA.
This has all been working fine for 2 years and has suddenly stopped.
I have been looking online but there is nothing that is related to my issue.
TMG is at the latest service pack SP2.
Any help/guidance appreciated.
Thanks
Marc