I am trying to remove 2 rights to a mailbox via powershell. the command I am running doesn't seem to work though.
There are 2 service accounts that seem to have a deny setting on the mailbox; as shown in the screenshot. user column is inDomain\User format.
I am trying to remove these because I believe it is causing an integration issue between Cisco Unified messaging and outlook. (New voicemails do not show up in the inbox for this one user, even though tests from Cisco UM are ok.)
Running this command doesn't seem to remove the entries I need:
remove-MailboxPermission -Identity <USER ALIAS> -User<SERVICE ACCOUNT> -AccessRights FullAccess -InheritanceType all