SpamLookup can perform lookups on the domain names of all URLs contained in a feedback item with any domain blacklist service. These services track domain names used in spam.

There are three settings for this tests operation:

• Off - This test is not performed
• Moderate - When a feedback item is received with a domain name that is listed with one of the specified blacklist services, the item is left unpublished and awaiting administrator approval.
• Junk - The same as above, except that instead of moderating it, SpamLookup contributes to the item's Junk score, which may, depending on the other scores the item receives, lead to it being marked as Junk.

Junk score weight

For the Junk option, you can adjust the score this test contributes based on your confidence of the test from 1 (least confident, the default) to 10 (most confident).

Domain Blacklist Services

You can alter the blacklist services used in the IP address lookups. The default services are bsb.spamlookup.net, sc.surbl.org.

Recommended settings

The default domain blacklists tend to be extremely accurate in determining what is and is not spam. We recommend that this setting be set to Junk matching items with a junk score weight of either 1 or 2.