Configuring Multistreamed Archiving for the Exchange Mailbox Agent

Multistreaming allows you to archive multiple mailboxes in parallel.

User Mailbox and Journal Mailbox: Each access node that is associated with the Exchange Mailbox client can have a maximum of 20 streams for each job. However, one service account can only use a maximum of 15 streams regardless of the value set for the subclient. If you need to use a higher number of streams, use more than one service account.


After adding the additional service accounts and proxy servers, you must manually increase the streams.


  1. From the CommCell Console, expand Client Computers > client > agent > set.

  2. At the bottom portion of the right pane, click the Content tab.

  3. Right-click the subclient, and then click Properties.

    The Subclient Properties dialog box appears.

  4. On the General tab, in the Maximum streams that can be used box, enter the number of streams that you want to use.

  5. Click OK.