• BlackBerry® Enterprise Server for Microsoft® Exchange

The name could not be resolved. The name could not be matched to a name in the address list.

• You created a Messaging Application Programming Interface (MAPI) profile and selected Check Name.
• You typed a Microsoft Exchange alias in an email form in the Mailbox: field and then pressed CTRL + K.

1. The BlackBerry Enterprise Server administration account is not a member of the Administrators group and the Authenticated Users’ Read permissions were removed.
2. The BlackBerry Enterprise Server administration account mailbox or email address is hidden from the Global Catalog List.
3. The BlackBerry Enterprise Server administration account mailbox does not exist.
4. The TCP/IP in the Local Area Connection must be reinstalled.

1. Click Start > Programs > Administrative Tools > Active Directory Users and Computers.
2. On the View menu, click Advanced Features.
3. Right-click Users and click Properties.
4. Click the Security tab.
5. Select Authenticated Users, and then select Read permissions in the Allow column.

1. In Microsoft Active Directory, select the affected BlackBerry smartphone user account.
2. Open the account properties.
3. Click the Exchange tab.
4. Clear the Hide from Global Catalogue List check box.

1. Go to My Computer > Control Panel > Network Connections > Local Area Connection.
2. From the File menu, select Properties, and then clear the Internet Protocol (TCP/IP) check box.
3. Install another protocol (NWlink or NetBEUI) to maintain a placeholder for each connection.
4. Restart the computer.
5. Go to My Computer > Control Panel > Network Connections > Local Area Connection.
6. From the File menu, select Properties, and then select the Internet Protocol (TCP/IP) check box to add TCP/IP.
7. Clear the check box for the protocol added in step 3 (NWlink or NetBEUI)
8. Click OK to save the changes.