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126 Barracuda Spam Firewall Administrator’s Guide

Adding Email Addresses and Domains to Your Whitelist and Blacklist

Preferences > Whitelist/Blacklist allows you to specify e-mail addresses and domains from which you

do or do not want to receive e-mails.

To whitelist or blacklist senders, follow these steps:

1. Select Preferences > Whitelist/Blacklist.

A list of your existing whitelisted and blacklisted addresses appears on this page.

2. To delete a whitelist or a blacklist entry, click the trash can icon next to the address.

3. To add an entry, type an e-mail address into the appropriate field, and click the corresponding

Add button.

Tips on specifying addresses

When adding addresses to your whitelist and blacklist, note the following tips:

• If you enter a full e-mail address, such as [email protected], just that user is specified. If you

enter just a domain, such as yahoo.com, all users in that domain are specified.

• If you enter a domain such as barracudanetworks.com, all subdomains are also included, such as

support.barracudanetworks.com and test.barracudanetworks.com.

• Mass mailings often come from domains that do not resemble the company’s Web site name.

For example, you may want to receive mailings from historybookclub.com, but you will find

that this site sends out its mailing from the domain hbcfyi.com. Examine the From: address of an

actual mailing that you are trying to whitelist or blacklist to determine what to enter.

Reset Bayesian

Database

Click Reset to remove your Bayesian rules learned by the Barracuda Spam

Firewall from the point of installation.

Bayesian Database Backup

Backup Bayesian

Database

Click Backup to download a copy of your Bayesian database to your local

system. This backup copy can then be uploaded to any Barracuda Spam

Firewall, including this one, in the case of a corrupt Bayesian installation.

Restore Database Click Browse to select the backup file containing your Bayesian database, and

then click Upload Now to load the Bayesian settings to this Barracuda Spam

Firewall.

The backup file does not need to have originated from this Barracuda Spam

Firewall, nor from the same user database.

List Type Description

Whitelist The list of e-mail addresses or domains from which you always wish to receive messages.

The only time the Barracuda Spam Firewall blocks a message from someone on your

whitelist is when the message contains a virus or a disallowed attachment file extension.

Blacklist The list of senders from whom you never want to receive messages. The Barracuda Spam

Firewall immediately discards messages from senders on your blacklist. These messages

are not tagged or quarantined and cannot be recovered. The sender does not receive a

notice that the message was deleted, and neither do you.

The only time a blacklisted e-mail address is delivered is if the same e-mail address also

appears in your whitelist.

Setting Description

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