SpamAssassin Rule: <RCVD_IN_DNSWL_LOW>
Standard description: Sender listed at
http://www.dnswl.org/, low trust
Explanation
dnswl.org is a community-driven project to prevent false positives. dnswl.org provides a DNS-based whitelist of known legitimate hosts in different categories/trust levels.
The policy says for trust level "low": Low Occasional spam occurrences, actively corrected but less promptly.
Further Info
The default scores for this rule can be found
in the online list of tests.
