Exchange 2010 features two types of journaling, standard & premium. What is the difference between the two:
Standard journaling can only be applied on a per database level. This means that any database which has journaling enabled will have a copy of all messages that is sent & received by the users who has the mailboxes in that database. If you need to enable journaling for all users, you need to enable journaling on all mailbox databases.
To enable standard journaling, open the database properties from the EMC, navigate to “Maintenance“ tab, select the check box & define a journal mailbox.
Premium journaling comes into play when journal rules are configured. Using these rules, the scope of the user base & the message (global, external only or internal only) can be selected. This requires the mailboxes enabled for journaling to have an enterprise CAL each. To configure journal rules, navigate to Organization Configuration –> Hub Transport –> Journal Rules tab.
Standard journaling is a basic, “journal all in a database” option whereas premium has the option to select the scope of the users and messages.
We can exclude the email address (from/to ) in journaling through transport rule.
New-JournalRule –Name JournalRule –JournalEmailAddress ‘JournalMailbox@yourdomain.local’ –Scope ‘global’ –Enabled $true –Recipient ‘MailboxesToJournal@yourdomain.local’