Configuring the custom DNSBL list for the Anti-Spam engine

You can create a custom DNSBL list to improve the accuracy of spam detection. DNSBL servers stores lists of IP addresses that were previously detected as sources of spam and to which the Anti-Spam module assigns a spam rating and one of the Anti-Spam message scan status labels.

To create the custom DNSBL list of the Anti-Spam engine:

1. In the main window of the program web interface, open the management console tree and select the Settings section and Protection subsection.
2. In the Anti-Spam section, click the Custom DNSBL list link to open the Custom DNSBL list window.
3. In the text box under the name of the Custom DNSBL list window, type the DNS names of DNSBL servers.

   You can use only these symbols: a–z, A–Z, 0–9, "-" and ".", and the "-" symbol must not come last. For example, you can add the DNS name dns-bl.example.com to the list.

   Enter each DNS name in a separate line.

4. Click the Apply button.

To view the custom DNSBL list of the Anti-Spam engine:

1. In the main window of the program web interface, open the management console tree and select the Settings section and Protection subsection.
2. In the Anti-Spam section, click the Custom DNSBL list link to open the Custom DNSBL list window.
3. Click the Apply or Cancel button after you finish managing the list.

   The Custom DNSBL list window closes.

To remove an entry from the custom DNSBL list of the Anti-Spam engine:

1. In the main window of the program web interface, open the management console tree and select the Settings section and Protection subsection.
2. In the Anti-Spam section, click the Custom DNSBL list link to open the Custom DNSBL list window.
3. In the text box under the window name, select one or several entries that you want to delete.
4. Press the Delete key.
5. Click the Apply button.