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    Very interesting, I think it deserves more attention. The title might not be the catchiest though. Very very interesting. Well written too.

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      Maybe a title like “Publishing expired DKIM private keys would increase user security”

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        I’d considered that, but I don’t want to steal the limelight from Ryan who already wrote a post that makes that point.

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      First, thanks for this article, it was very instructive. I had never read about deniability before and I find the issues really interesting.

      Second, thanks for your blog, I keep reading article that pops on Lobsters and I’ve never been disappointed.