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Comment: [Original edit by KevinMcGrail] Adding a link for DNS-Block rules

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news.admin.net-abuse.blocklisting is a newsgroup devoted to discussion of subjects related to the use, administration, and effects of blocklists in ameliorating the problem of unsolicited bulk email and other unwanted or abusive network traffic. It is also accessible through groups.google.com.

Questions And Answers

Anchor
dnsbl-block
dnsbl-block

Q: My queries to a DNS-blocklist were blocked. What does this mean?

A: DNS-Blocklists often run on the "free for some" model and/or they may limit the number of queries you can perform to maximize resources.

If you were directed to this link from a rule description, then you have a DNS-Blocklist that is purposefully blocking your queries.

Resolving the block might be as simple as using your own caching nameserver to avoid being lumped together with other users queries; setting up your own mirror of the DNS-blocklist; or paying to use the blocklist. The choice is up to the DNS-Blocklist administrator.

SpamAssassin supports the "free for some" model since it works for the majority of SpamAssassin installations. However, we do not support methodologies that purposefully return wrong answers and those DNS-Blocklists will be disabled by default.

Q: This documentation doesn't seem to cover how to configure dnsDNS-blocklistsBlocklists. It says "Support for these is built-in" but I can't believe that all free BL's is called each time a mail is beeing checked. There must be a way to configure which to use.

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