Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2012-07-23

You can configure the number of logon failures allowed before the PIN is reset for an Outlook Voice Access user. You can configure the number of logon failures allowed before a PIN is reset from 1 through 998. The default is 5. The number of logon failures allowed before a PIN is reset is configured on a Unified Messaging (UM) mailbox policy and applies to all UM-enabled users associated with the UM mailbox policy.

Note:
You can increase security by configuring the Number of incorrect PIN entries before PIN is automatically reset setting to a number less than 5. You decrease security if you configure it to a number more than 5.

Looking for other management tasks related to UM mailbox policies? Check out Managing UM Mailbox Policies.

Prerequisites

Use the EMC to configure the number of logon failures before a PIN is reset

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM mailbox policies" entry in the Unified Messaging Permissions topic.

  1. In the console tree, navigate to Organization Configuration > Unified Messaging.

  2. In the work pane, on the UM Mailbox Policies tab, select the UM mailbox policy you want to manage, and then, in the action pane, click Properties.

  3. On the UM mailbox policy Properties page, click the PIN Policies tab.

  4. On the PIN Policies tab, under Failed Logons next to Number of incorrect PIN entries before PIN is automatically reset, enter a value between 1 and 998.

  5. Click OK to save your changes.

Use the Shell to configure the number of logon failures before a PIN is reset

You need to be assigned permissions before you can perform this procedure. To see what permissions you need, see the "UM mailbox policies" entry in the Unified Messaging Permissions topic.

This example sets the number of logon failures before the user's PIN is reset to 3 for UM-enabled users who are associated with a UM mailbox policy named MyUMMailboxPolicy.

Copy Code 
Set-UMMailboxPolicy -Identity MyUMMailboxPolicy -LogonFailuresBeforePINReset 3

This example sets the number of logon failures before the user's PIN is reset to 3, the maximum number logon attempts to 5 and a minimum PIN length to 9 for UM-enabled users who are associated with a UM mailbox policy named MyUMMailboxPolicy.

Copy Code 
Set-UMMailboxPolicy -Identity MyUMMailboxPolicy -LogonFailuresBeforePINReset 3
-MaxLogonAttempts 5 -MinPINLength 9

For more information about syntax and parameters, see Set-UMMailboxPolicy.

Other Tasks