📖 Glossary

What is Sender Reputation?

A score assigned to your IP address and domain by Internet Service Providers (ISPs), measuring your trustworthiness as an email sender.

Detailed Explanation

Sender reputation acts like a credit score for email sending. It is determined by factors like bounce rates, spam complaints, engagement (opens/clicks), spam trap hits, and authentication (SPF, DKIM, DMARC). A good reputation means your emails land in the primary inbox. A bad reputation routes your emails to the spam folder or blocks them entirely. ZeroBounce AI helps protect your sender reputation by removing harmful addresses from your lists.

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