Barracuda Networks 4 Guía de instalación descargar pdf (Pagina 44)

44 Barracuda Spam Firewall Administrator’s Guide

• Show messages from the local Barracuda Spam Firewall only (clustered environments).

The default behavior is for the message log to display messages from all the Barracuda Spam

Firewalls in your clustered environment. If

Only view local messages is set to Yes, then the

message log will not show messages received by other Barracuda Spam Firewalls in the cluster.

Showing only local messages allows the administrator to only view the messages that they can

classify, as opposed to messages from other systems in the cluster that the administrator cannot

classify because the administrator is not logged into those other systems.

Viewing Message Details

To view more information about a message on the Message Log page, click a message to display the

details window.

From the details window, click the following:

•

View Message tab to view the contents of the message

• View Source tab to view the contents including e-mail headers.

•

Deliver link to send the message to the intended recipient.

Viewing the message body can help you identify words or characters that you may want to include in

body filtering. For example, if you notice a series of messages that advertise “as seen on TV” in the

body, you can add “as seen on” as keywords that will either block, quarantine or tag messages

containing those words. For more information on body filtering, refer to Body Filter on page 66.

If you do not want the body of the e-mail displayed for privacy reasons, you can select to hide the

body content using the

Message Log Privacy setting on the BASIC-->Administration page.

Clearing the Message Log

Clicking Clear Message Log clears all messages from the Message Log, but does not clear the

Bayesian database.

It may take 2 hours to 4 days to completely purge the messages from the system drive. During this

time, disk usage may or may not drop at a noticeable rate.

Configuring the Global Spam Scoring Limits

Once a message passes through the block/accept filters, it is then scored for its spam probability. This

score ranges from 0 (definitely not spam) to 10 or higher (definitely spam).

Based on this score, the Barracuda Spam Firewall either tags, quarantines, blocks or allows the

message.

The following table describes the spam scoring settings on the

Basic > Spam Scoring page. A setting

of 10 for any setting disables that option.

Note

DO NOT use this functionality to free space on the drive unless no further e-mail is flowing in. In

many case, e-mail arrives faster than it is purged, thus negating the clearing of the Message Log

for space reasons. If drive space continues to be a problem, contact Barracuda Networks Technical

Support.

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