My users cant access to options on webmail, but users that have Domain admin or Exchange admin privilegescan access to options and change signature, theme or anything other.
We have Exchange 2013 organization.
I tried http://msundis.wordpress.com/2013/02/26/users-is-unable-to-access-owa-options-ecp-in-exchange-2010-and-2013/ but all users have an Role Assignment Policy set,“Default Role Assignment Policy”.
What to do, where to look for a root of problem ?