Domain has 2 zones: 1. mycompany.com 2. mycompany.net
the ".com" zone is our external domain and ".net" is internal. I have setup a new exchange 2013 environment as migrating from domino/lotus server.
we have a wildcard cert for external domain which is imported into new exchange and working fine i.e. "*.mycompany.com"
after running all post setup task for exchange server etc all is fine I've created a couple of test accounts and can send mail internally and send externally using OWA. (cant received internally yet because we a re still using domino until we migrate mailboxes in the next week or so).
now I've setup a test outlook machine and it wont connect with error:
"the action cannot be completed. the connection to the exchange server is unavailable. outlook must be online or connected to complete this action.
from exchange powershell I ran "test-outlookwebservices......"
here's the output:
Error : System.Net.WebException: The underlying connection was closed: Could not establish trust
relationship for the SSL/TLS secure channel. --->