To collect data from Exchange 2013, the credentials used to collect Exchange data must have Application
Impersonation rights for the mailboxes from which you are collecting.
To set impersonation for the collection credentials
1 Open the web-based Exchange Admin Center (EAC) for your Exchange 2013 server.
2 Click Permissions.
3 Under Admin Roles, click +.
4 Enter a name for the new role group, such as Impersonation.
5 Under Roles, click +.
6 Select ApplicationImpersonation and click add->.
7 Click OK.
8 Under Users, click +.
9 Select the account that will be used to collect the mailbox data from Exchange 2013 and click OK.
10 Click Save.