https://bz.apache.org/SpamAssassin/show_bug.cgi?id=8193

--- Comment #5 from Stefan <[email protected]> ---
I have wasted a several hours of my time because of this problem, and I want to
share what I discovered.

In response to Benny, it turns out there is nothing wrong with the set-up of
SpamAssassin on my server and no one was being "ignorant".

It turns out that this is ENTIRELY INTENTIONAL BEHAVIOR by dnswl.org:

https://www.dnswl.org/?p=120

Summary: Those who haven't paid (or haven't paid enough) eventually start
receiving "whitelisted" for ALL queries.  In other words, false positives for
ALL spammers.

Not only that, dnswl.org does not make this at all clear on the main pages of
its website.  This took a lot of digging.  They also hide their pricing behind
a log-in.  These are not the behaviors of a reputable or ethical organization.

I fail to understand why SpamAssassin doesn't warn users about this, why it
finds this type of behavior acceptable coming from one of its partner services,
and why it places a very high negative spam score of -5.0 on these false
positives.

At the very least, dnswl.org should simply be blocking non-paying users instead
of returning false positives, so that SpamAssassin assigns a score of 0.0
instead of -5.0 (just like they do with the various blacklists that block
queries).

Instead, SpamAssassin and dnswl.org work together to 'punish' web hosting
companies by deliberately poisoning their customers' spam filters.  Punish the
peasants to teach the king a lesson.

My web hosting company's solution is: Set all dnswl.org-related scores to 0.0. 
At this point I can't argue about that; dnswl.org are making themselves
irrelevant through their irresponsible behavior.

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