• Very interesting. I am not going to pretend that I understand all of this but at least I now do know a bit more about the anti-spam methods available out there.

  • @Lyndi

    Most antispam is marketed as install and get rid of spam. It’s not that easy… and techies really like to pick their tools. And in case of spam it’s really lot of tools to choose from.

  • There are a few anti-spam tools that combine a lot of these filters and actually make it easier to get good spam capture rates out of the box.

    There’s a balance that vendors have to strike between offering a multitude of spam filters to improve capture rates and providing a relatively easy and effective set up. The latter is extremely difficult to achieve and not for the faint hearted, as you rightfully pointed out Rarst.

    Great post!

  • @How anti-spam filters work

    Thanks for your visit and comment. I am plannig third post about spam to wrap this series so be sure to drop by or subscribe to my feed. :)

  • This is a very interesting post – good summary of a lot of different features (whether they work or not). We work hard on finding that balance between a filter that filters out only the spam but never filters out what you want. It is definitely a full time job.

  • @emailspam

    Thanks to getting to my spam series and welcome to blog. I start to feel power of Twitter. :)

    Indeed balance is extremely important in spam filtering. But lots of solutions are promoted as silver bullet while it’s area where cheap shortcuts can do a lot of harm.

  • There is no such thing as a silver bullet for sure. Email spam filter is like a baby you have to feed all the time, but most people don’t have time for that, so they have to go to someone else who at least claims they do.

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