PowerMTA.in resource
Email Deliverability Calculator
Enter campaign totals to calculate common email performance metrics. The calculations run in your browser.
How these email metrics are calculated
This calculator uses simple ratios from the totals you enter. Delivery rate is delivered messages divided by sent messages. Bounce rate is the undelivered portion of sent messages. Open rate is opens divided by delivered messages, while CTR is clicks divided by delivered messages. Click-to-open rate is clicks divided by recorded opens.
How to interpret the results
- Compare delivery and bounce rates with your ESP or MTA logs to identify list-quality or routing problems.
- Open rates can be affected by privacy features, image loading, and mailbox-provider measurement changes, so treat them as directional rather than absolute.
- A high delivery rate does not guarantee inbox placement. Authentication, sender reputation, complaints, engagement, and mailbox-provider filtering also matter.
Related checks
For a deeper diagnosis, review your authentication setup, IP reputation, and deliverability checklist.