Consider the following scenario:
- You have a Microsoft Exchange Server 2010 Client Access server in an Exchange Server 2010 environment.
- A domain controller is installed on a different server in the environment.
- User A’s mailbox is hidden from the Exchange address lists.
- User B configures Microsoft Outlook to connect to the Microsoft Exchange account in online mode.
- User B creates an email message by using Outlook. User B enters the LegacyExchangeDN attribute of user A’s mailbox as the recipient address. For example, user B enters "/o=OrganizationName/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=User A’s mailbox" in the To box of the message.
- User B tries to resolve the recipient address by clicking Check Names or pressing Ctrl+K.
Microsoft Office Outlook does not recognize ' / o=OrganizationName/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=User A’s mailbox '
Notes- The expected behavior is that user B can resolve the recipient address successfully.
- This issue does not occur if the Exchange Server 2010 Client Access server and the domain controller are installed on the same server.