IT Problem
If you have a 2010 exchange server and also a legacy exchange 2003 server, when you try and edit the recipient update policy then you may see the error below.
IT Solution
We need to use the set-emailaddresspolicy cmdlet to set the the exchange 2010 server to be able to manage the recipient policy.
OK so open up the exchange power shell console and copy and paste the below text into it then press return.
Get-EmailAddressPolicy | where {$_.RecipientFilterType –eq “Legacy”} | Set-EmailAddressPolicy –IncludedRecipients AllRecipients
Restart the exchange 2010 console and you will now be able to edit the recipent policy in exchange 2010