Some targets have no email addresses defined
The error is caused by one or more Custodians not having at least one email address listed in Custodian Manager. This could be due to a Custodian having been recently added but not yet synchronized with Active Directory (AD) / Domino so that its email address(es) is(are) listed in Custodian Manager, or a Custodian having been manually added without at least one email address.
1. Log in to the Custodian Manager site via the Client: Custodians tab | Custodian Manager sub-tab | click on the "Click here to open the Custodian Manager web site" URL | go to Manage or Create Custodians.
2. If the Custodian was added via AD/Domino, synchronize the Custodians by clicking on the Synchronize Now button and allow synchronization to complete.
3. If the Custodian was manually added, Find the Custodian, add at least one valid email address and click OK.
Once these steps have been completed, configure a new Search and select the required Custodian(s).