Administering shadow mailbox and ELA community IDs

This topic describes how to set up community IDs for use with ELA. Community IDs are used to control message sending and receiving among groups of subscribers.

Complete the following steps to administer the ELA and shadow mailbox community IDs:

1. Verify that there are at least two communities that you can use for ELA (four communities are needed if you are going to implement a special community for selected subscribers with access to ELA mailboxes). See Administering MSS community sending restrictions for more information.
2. Specify a Community ID for the enhanced-list mailbox community:
   1. On the Configure Subscriber Management page, in the List Mailbox Default Community ID field, select the CID to be assigned to each new ELA mailbox by default.

      Note: You can change the CID for an ELA mailbox when you create it.

   2. Click Save.

      The Manage Subscribers page displays.

3. Select a shadow mailbox Community ID. The shadow mailbox Community ID should be administered so that messages can be sent to any community, but messages cannot be received from any other community. You specify the shadow mailbox community you select later when you are creating a shadow mailbox.
4. If you choose to restrict access to ELA usage, you can also set up a special subscriber community and then administer that community to send to all communities except the shadow mailbox community. Place only those subscribers to whom you give permission to use the enhanced lists into this special community. All other subscribers must be administered to belong to another community restricted from sending messages to the enhanced-list mailbox community.
5. Set the community sending restrictions for the ELA Community ID and shadow mailbox Community ID:
1. On the Edit Sending Restrictions page, use the checkboxes to set the sending restrictions between communities of subscribers. If a box is checked, the corresponding sender community (row) cannot send voice mail to members of the corresponding recipient community (column). You can check or uncheck an entire row or column by clicking on the row or column number.
2. Click Save.
6. Now use the Edit Local Subscriber page to assign your subscribers either to the community that does not have access to enhanced lists or to the special community that does have access. If you used your default subscriber community (Community 1) as the community that does not have access, then you have to administer only those selected individuals who will belong to the new special community with access to enhanced lists. See Sample Sending Restrictions page for an example of how to set up this page.

If the messaging system is networked with other messaging systems, all enhanced-list mailbox community sending restrictions must be consistently applied throughout the systems. Community ID numbers must have the same meanings on all machines. Of particular importance is that the shadow mailbox community must not be accessible by any other community on any machine in the network. See Setting up community sending restrictions for a thorough description of community sending restrictions.

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