Compatibility issue

Hello everyone,

One of my clients has EV 11.0.1 which they are using to archive users who are on Exchange 2010. We ran OWA extensions 2010 setup for EV 11.0.1 and the search option from OWA stopped working so I downgraded OWA extension for EV 11.0.1 to OWA extension for EV 11.0 and now the users can search without any issues. All the users have IE version 10. We have not tested this scenario with IE 11.

My question - Is EV 11.0.1 OWA setup not compatible with Exchange 2010?

 

Any help will be appreciated. Thank you in advance.