Scan Messages Received The available time intervals are Anytime,
Within The Last x Days 4, 6, 8, 12, and 18 hours, and 1, 2, 3, 4, 5,
6, 7, and 30 Days.
By default, the scan interval is set at 2 days. For most companies, this should be
suffi cient to ensure that the job completes within a number of hours. If you host a large
amount of mailboxes on your Mailbox server and receive large amounts of messages
daily, you should reduce the interval to a value appropriate for your company.
Filtering
The fi ltering section allows you to confi gure message fi lters for each of the Scan Jobs.
When you confi gure the fi lters, you are able to select the action to take if the fi lter
matches. While the options vary depending on the fi lter type, there are four available:
?– Skip: detect only This option leaves the attachment in the message and
places an entry in the logs.
?– Delete: remove contents This option removes the attachment and
replaces it with a text fi le containing the deletion text.
Using Forefront to Guard Microsoft Exchange Server ??? Chapter 5 219
?– Purge: eliminate message Remove the entire message.
?– Identify: tag message Place a tag in the subject and/or message header.
You will also be able to choose if the fi les or messages should be quarantined.
If you enable this option, the fi le will be quarantined if you choose the Delete or Purge
action. You will also be able to enable Notifi cations, which will allow you to send
notifi cations to the sender and/or recipients.
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