Related Posts

The view from a blacklist operator

We run top-level DNS servers for several blacklists including the CBL, the blacklist of infected machines that the SpamHaus XBL is based on. We don’t run the CBL blacklist itself (so we aren’t the right people to contact about a CBL listing) we just run some of the DNS servers – but that means that we do get to see how many different ways people mess up their spam filter configurations.
This is what a valid CBL query looks like:

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Why offer a feedback loop?

Someone asked yesterday

What business advantage is there to an ISP in offering a feedback loop? I’ve never really seen one.

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Gmail offering unsubscribe option

This morning Lifehacker reported that Gmail was offering an option to unsubscribe from some legitimate email lists.
Gmail’s help pages say:

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