I have a single EV and a single Exchange 2007, when user try to open an archived mail they are prompt for user credentials at first thant got the warning attached.
It says that "it is possible that the web site I try to access could be not secure and used to catch personal informations" if user click on yes the mail is correctly showed.
We already tried to :
2) follow again all the steps to add OWA 2007 extensions
3) the Webconfig is set to require HTTP and not HTTPS.
4) there are no error in EV log and Exchange EVT.
Solved! Go to Solution.