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46 Barracuda Spam Firewall Administrator’s Guide

Enabling and Disabling Virus Checking and Notification

Virus scanning is automatically enabled on the Barracuda Spam Firewall, and the system checks for

definition updates on a regular basis (hourly by default).

Use the

Basic > Virus Checking to configure the virus checking and notification settings described in

the following table. Click

Save Changes after making any modifications.

Setting Up Quarantine Policies

By default, the Barracuda Spam Firewall does not quarantine incoming messages, but you may want

to enable quarantine because it can provide additional security. Unlike tagged messages, quarantined

messages are not delivered to the intended recipients, thus minimizing the risk of a user opening an

infected message and spreading a virus throughout your network.

To set up quarantine policies on your system:

Note

You can create rules in many mail clients to place tagged messages in a separate mail folder. For

example, when your users receive spam messages with a subject tag of [BULK], you can configure

their mail clients to deliver these messages to a folder called Possible Spam.

Table 4.7:

Setting Description

Virus Scanning Enabled: When virus scanning is enabled, all messages are automatically

scanned for viruses. The Barracuda Spam Firewall always blocks

a message that contains a virus. The message is never

quarantined and is not delivered to the intended recipient even if

the sender has been whitelisted. It is recommended you keep

virus scanning enabled.

Note: On the Barracuda Spam Firewall 400 or above you can

enable and disable virus checking on a per-domain basis from

the DOMAINS tab. For more information, refer to Editing

Domain Settings on page 76.

Notify Sender of Virus Interception: Determines whether the Barracuda Spam Firewall notifies the

sender that their e-mail has been blocked because it contained a

virus.

You should keep this option set to No to prevent the Barracuda

Spam Firewall from sending mass e-mail notification traffic in the

event of a widespread virus outbreak.

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Barracuda Networks 4 Installationsanleitung Seite 46