Google Message Archiving Microsoft Exchange Journaling Configuration Guide For Exchange Server 2000 and 2003 - Manual (Page 21)

Setting Up Microsoft Exchange Journaling 25
6. Make sure Create an Exchange Mailbox is selected, and then select the
appropriate server and mailbox store. (Remember, you will not enable
journaling on this mailbox store.)
7. Click Finish.
The journal recipient user mailarchive now appears in your user list in Active
Directory Users and Computers. For example:
Note: You can add a description, such as that shown in the figure, by editing the
user.