* David Banes <[email protected]> [2017-09-01 17:16]: > 'If you are a service provider with an open relay you will quickly find > yourself on a blacklist which will mean most other services providers > will be blocking you.'
Not sure "most" will, but whatever. The question was whether you achieve a good spam classification accuracy by blocking whole servers. I think the answer is "no", and current practice in the email universe shows that. The point is that you don't only have good servers who only send ham and bad servers who only send spam. There are many servers who send both. So if you want reasonable classification accuracy, you (also) need different indicators. Holger
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