Understanding Your Gmail Score
Your Gmail deliverability score is a heuristic estimate of how likely your email is to reach the inbox at Gmail.com. Here is how it is calculated and what each range means.
Your email passes all major authentication checks and has no significant content issues. Likely to reach the primary inbox, though actual placement also depends on your sender reputation and recipient engagement history.
There are one or more issues that could affect inbox placement. Common causes include missing DMARC policy, high HTML-to-text ratio, or subject line spam signals. Review the issues list and address the highest-severity items first.
Multiple high-severity issues detected. Your email is likely to land in spam or be rejected outright by Gmail. Authentication failures, especially DMARC with a reject policy, are the most common cause of scores in this range.
Key factors in the Gmail score
- SPF pass/fail (high weight)
- DKIM pass/fail (high weight)
- DMARC policy (quarantine or reject penalised if missing)
- List-Unsubscribe header (required for bulk senders since February 2024)
- Subject line spam signals and content structure