F-SECURE ANTI-VIRUS FOR MICROSOFT EXCHANGE 7.10 Administrator's Manual page 105

CHAPTER 5 105
Centrally Managed Administration
Scan only included mailboxes - Scan all
specified mailboxes. Click Edit to add or remove
mailboxes that should be scanned.
Scan all except excluded mailboxes - Do not
scan specified mailboxes but scan all other.
Click Edit to add or remove mailboxes that
should not be scanned.
The format to enter the included or excluded
mailbox is the username, for example: user1
Step 3. Public Folders