Following the recommendation to mitigate the Poodle vulnerability, we tried disabling SSLv3 and making sure that users had TLS 1.1 and 1.2 enabled on their browsers.
We used IIScrypt to turn off SSLv3 (v2 was already disabled from before).
Now, OWA works fine, and users are able to connect via the Web.
Internally, users are also able to connect with Outlook 2010/2013.
however, users are not able to connect via Outlook from outside (Outlook anywhere)
In the event viewer you get an error:
A fatal alert was generated and sent to the remote endpoint. This may result in termination of the connection. The TLS protocol defined fatal error code is 70. The Windows SChannel error state is 105.
I opened a ticket with Microsoft but the lady working on the case wanted us to re-enable SSLv2 which is out of the question.
Anybody has seen this issue as well?