Dedicated vs Shared IPs

Explaining the differences with a simple metaphor involving sporting teams, coaches and referees could be a simpler way to guide clients around the most important factors to consider while evaluating options for email delivery.

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Blacklist Bias

DNS blacklists and other classes of filters are defense mechanisms with biases that affect their performance depending on geography, language and other factors. Why is that, how does it affect email senders and what can be done about it?

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