Over the next few weeks, we will be reviewing the technologies and innovations of several email integrity companies. You'll notice that these companies apply a range of technologies, centered around several notable goals:
- reducing the volume of spam that gets accepted into users' inboxes and into the hygiene system
- reducing the volume of spam that gets challenged (if they support challenge-response)
- reviewing the best applications of and best practices of filtering technologies
None of these companies paid for their reviews on this blog (as is our standard practice).