Attempting to use DNS MX records to map the global Email Security Provider landscape.
If you have read my blog before, you may realize that I really love DNS data and dns analytics. In this post, I share some experiences in using mostly DNS data for identifying the visible footprint of popular email security providers.
This may not be terribly novel, but it was an interesting exploration during a time of boredom for me. This work was initially motivated by two events:
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