After you install the Barracuda Spam Firewall, the system begins filtering incoming email based on the
default settings. For example, the unit automatically checks incoming email for viruses and uses the
Barracuda blacklist service to identify spam.
Initially, your Barracuda Spam Firewall is configured to tag most spam by adding the word “[BULK]”
to the subject line of messages. Once you have more experience with the Barracuda Spam Firewall you
can adjust how aggressively the system deals with spam. For example, you may decide to quarantine
spam instead of blocking it.
The following table describes the most common tasks you should perform when first tuning your
system.