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Glossary

Spam rate

The share of your emails recipients mark as spam. Gmail asks senders to stay below 0.3%, and reports the figure in Postmaster Tools.

The spam rate is the share of your messages that recipients report as spam. Google asks senders to keep it below 0.3%, recommends under 0.1%, and shows it per domain in Postmaster Tools, once a domain sends enough to Gmail recipients for the figure to mean something. It’s the most direct measure of whether people wanted your message, which no amount of technical setup can make up for.