Campaign Inputs
The calculator section stays in one content flow, while inputs adapt to three columns on large screens, two on tablets, and one on phones.
Example Data Table
Use this sample to test delivery, bounce, and quality benchmarks.
| Campaign | Sent | Hard Bounces | Soft Bounces | Blocked | Deferred | Delivered | Delivery Rate |
|---|---|---|---|---|---|---|---|
| Newsletter A | 12000 | 110 | 95 | 40 | 20 | 11735 | 97.79% |
| Promo Blast B | 8500 | 180 | 120 | 55 | 30 | 8115 | 95.47% |
| Retention Flow C | 5600 | 35 | 28 | 15 | 12 | 5510 | 98.39% |
Formula Used
Delivered Emails = Emails Sent − (Hard Bounces + Soft Bounces + Blocked or Rejected + Deferred or Pending)
Email Delivery Rate = (Delivered Emails ÷ Emails Sent) × 100
Accepted Rate = (Accepted Emails ÷ Emails Sent) × 100
Total Bounce Rate = ((Hard Bounces + Soft Bounces) ÷ Emails Sent) × 100
Complaint Rate = (Spam Complaints ÷ Delivered Emails) × 100
Revenue per Delivered Email = Revenue ÷ Delivered Emails
How to Use This Calculator
- Enter a campaign name and date for reporting clarity.
- Fill in total emails sent for the selected campaign.
- Add hard bounces, soft bounces, blocked messages, and deferred counts.
- Enter complaints, unsubscribes, opens, clicks, conversions, and revenue.
- Set a target delivery benchmark that matches your program goals.
- Press the calculate button to show results above the form.
- Review the rates, benchmark gap, and recommendations.
- Export the results to CSV or PDF for reporting.
Frequently Asked Questions
1. What does email delivery rate measure?
It measures the share of attempted emails that reached recipients after bounces, blocks, and pending deferrals were removed from total sends.
2. Why are deferred emails separated?
Deferred emails are often temporary delays, not final failures. Tracking them separately helps diagnose throttling, reputation issues, or receiving server congestion.
3. Are complaints part of delivery rate?
No. Complaints happen after delivery. They do not reduce delivered volume directly, but they signal list quality and can hurt future inbox performance.
4. What delivery rate is considered strong?
Many teams aim for at least 98%. Strong performance still depends on complaint levels, bounce trends, authentication setup, and sender reputation.
5. Why can accepted rate exceed delivery rate?
Accepted rate removes bounces and blocks first. Delivery rate then subtracts still-pending deferred emails, which can make the final rate lower.
6. Should I include unsubscribes in delivered emails?
Yes. Unsubscribes occur after a message was delivered. They belong in quality analysis, not in the undelivered count.
7. How can I improve a weak delivery rate?
Clean inactive addresses, verify permission, segment better, reduce spikes, authenticate domains, warm infrastructure carefully, and monitor blocklist or ISP feedback signals.
8. Can I use this for comparing campaigns?
Yes. Use consistent definitions across campaigns, then compare delivery rate, bounce mix, complaint pressure, and revenue per delivered email.