Return Path on Content Filtering

Return Path have an interesting post up about content filtering. I like the model of 3 different kinds of filters, in fact it’s one I’ve been using with clients for over 18 months. Spamfiltering isn’t really about one number or one filter result, it’s a complex interaction of lots of different heuristics designed to answer the question: do recipients want this kind of mail?

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Return Path speaks about Gmail

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Things Spammers Do

Much like every other day, I got some spam today. Here’s a lightly edited copy of it.
Let’s go through it and see what they did that makes it clear that it’s spam, which companies helped them out, and what you should avoid doing to avoid looking like these spammers…

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Spam works

I got a spam today advertising spamming services that ended with a tagline that can be paraphrased: We managed to spam you, let us spam others on your behalf!
OK, so what they actually said was:

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