HREF Domain Black List

# URL Domain Black List

The URL Domain Black List, allows you to block messages that contain links to domain names that are embedded in HTML code. This is done by searching the HTML sections of a message for HREF and IMG SRC tags. You can manually add domain names that occur in spam as described below, or use the antispamseeder utility to extract the domain names from spam messages. The list of current domains in the URL Domain Black List are displayed in the DOMAIN LIST box. These domain names are stored in the url-domain-bl.txt file, which is located in the IMail Top directory.

### Adding a domain to the URL Domain Black List

1. Select one of the following options:

- None. Select this option to disable the URL Domain Black List for the selected host.

- Current Host. Select this option to use the selected host's URL Domain Black List. The primary host selects this option to use the primary URL Domain Black List. Secondary hosts select this option to use the secondary host's URL Domain Black List.

- Primary Host (disabled for the primary host). Secondary hosts can select this option to use the primary domain's URL Domain black list instead of the selected host's.

2. In the DOMAIN text box, enter the domain name or IP address to be added to the list. Click here for acceptable entries.

3. Click Add. The domain name now appears in the DOMAIN LIST box.

4. Select one of the following spam actions to take on an e-mail that contains one or more of the domain names in the DOMAIN LIST box:

- Delete. Immediately deletes the message.

- Forward To. Forwards the message to the e-mail address entered in the ADDRESS text box.

- Insert X-Header (default). Inserts an X-Header into the e-mail indicating that it was identified as spam by the URL Domain Black List.

5. If you select Forward To, enter the e-mail address to which messages will be forwarded in the ADDRESS text box. If no address is entered, messages are sent to the root account and stored in a mailbox called "bulk".

6. Click Save, to save your new URL Domain Black List.

## Editing a Domain in the URL Domain Black List

1. From the DOMAIN LIST box, select the domain name that you want to modify. The domain name you selected, will be placed into the DOMAIN text box.

2. In the DOMAIN text box, make any desired modifications to the domain name and click Edit.

3. Click Save, to save your new URL Domain Black List.

## Removing a Domain from the URL Domain Black List

1. From the DOMAIN LIST box, select the domain name that you want to delete, and click Remove.

2. Click Save, to save your new URL Domain Black List.

Notes:

- You can also use the antispamseeder.exe utility to create a URL Domain Black List. For more information see the IMail Administrator Help, or the IMail Server User's Guide.

- You can obtain an example URL Domain Black List from the Ipswitch website at www.ipswitch.com.

Related Topics:

Anti-Spam Overview

HTML Feature Filtering