Barracuda Networks manual List Type Description, Barracuda Spam Firewall User’s Guide

Changing your User Preferences

Adding Email Addresses and Domains to Your Whitelist and Blacklist

The PREFERENCES-->Whitelist/Blacklist page lets you specify email addresses and domains from which you do or do not want to receive emails.

List Type	Description
Whitelist	The list of email 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 ￿le 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 email address is delivered is if the same email address
	also appears in your whitelist.

To whitelist or blacklist senders, follow these steps:

1.Go to the PREFERENCES-->Whitelist/Blacklist page.

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 email address into the appropriate ￿eld, 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 email address, such asjohndoe@yahoo.com, just that user is speci￿ed. If you enter just a domain, such as yahoo.com, all users in that domain are speci￿ed.

If you enter a domain such as barracudanetworks.com, all subdomains are also included, such as support.barracudanetworks.comand 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 ￿nd 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.

5 Barracuda Spam Firewall User’s Guide