I have over 4000 users that have not been enable for Exchange in Active directory, when I try to create/enable an exchange account by selecting "Existing User" tab then click Browse and type the name of the user in search box that I want to enable, it comes up empty. So could it be the limit of users that can be displayed, if so, is there a setting somewhere I can change to increase the limit ? Exchange 2013 using EAC.
We still have a co-existance with Exchange 2010, when I try the same with EMC, no problems but when I user the Exchange Admin Centre, then I cannot get the users by searching.