Challenge/response spam filter

These tend to be trouble, because a forged sender can lead to some unsolicited responses from your server and potentially get spam complaints (and your ip in block lists) You are better off using rspamd, which has great spam filtering, and tie in redis and some additional fuzzy storage https://github.com/mailbaby/rspamd-rules
I do believe I did not ask if it was a good idea ? I also was not vague in my question afaik ? Please do explain why you came to the conclusion to force your opinion up onto me ? Do you have so little to do that you go about offering unasked opinions ?

This is becoming a increasingly REALLY annoying thing on the internet, you ask about where to get a purple car and lots of people reply that i am better of getting a yellow one instead. Seriously.
 
Car color is a bad analogy. Should I do something where my server is likely to get blacklisted if any mis-sent emails comes or is there a better solution? Rspamd is a better solution, and I thought we are in a discussion about directadmin, its features, and working to make it the best product. It was a bad idea in 2007 https://forum.directadmin.com/threads/boxtrapper.20442/ and remains one today. Hopefully someone follows up and response so you get your answer.
 
Car color is a bad analogy. Should I do something where my server is likely to get blacklisted if any mis-sent emails comes or is there a better solution? Rspamd is a better solution, and I thought we are in a discussion about directadmin, its features, and working to make it the best product. It was a bad idea in 2007 https://forum.directadmin.com/threads/boxtrapper.20442/ and remains one today. Hopefully someone follows up and response so you get your answer.
Let me spell it out: I do not care about your opinion noir will I enable your attempt to start a argument by arguing your points.
 
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