I am in the phase to upgrade from EXCH2007 to EXCH2013 with coexistense.
Now I am on the new EAC and I want to create a testmailbox.
But this is not working.
The error has to do with an old Emailaddresspolicy.
The recipient policy "mypolicy" with mailbox manager settings cannot be managed by the current version of
Exchange Management Console. Please use a management console with the same version as the object.
How to get rid of it ?
Normally this is a very old policy and not used anymore.
But I cannot change it.