Open Rate Accuracy Checker
Takes your reported open rate and the composition of your recipient list, and estimates what the real human-read rate is after filtering MPP pre-fetches, Gmail proxy duplicates, and corporate-scanner traffic.
You ran the math. Outsolvi makes it real.
Calculators tell you what the number should be. Outsolvi tells you what your number actually is. confidence-scored opens, real reply sentiment, live deal-level signal across Outlook and Gmail. From $7/user/mo yearly, 14-day free trial.
See it on your own inboxEstimates what share of your recorded opens were machines rather than people, then shows the human-read rate underneath. Apple Mail Privacy Protection pre-fetches and corporate security scanners are the two large sources, so the estimate scales with how much of your list sits behind each. Output is a range, because the exact split depends on list composition.
When your reported open rate doesn't match your reply rate (e.g., 70% opens with 8% replies suggests inflation). The real-rate estimate aligns the metrics.
How to use it
- 1Enter your reported open ratePull from your current tracker's dashboard.
- 2Specify list compositionApproximate % iPhone users, % Gmail web users, % corporate addresses.
- 3Read the real-rate rangeTool outputs a low/high band, your true human-read rate falls inside it.
Common use cases
- •Sanity-checking a campaign that 'over-performed' on opens
- •Justifying a tool switch by quantifying current measurement error
- •Calibrating sequence-stop thresholds based on real engagement, not inflated metric
FAQ
Why is reply rate the cleaner side-by-side signal?+
Reply rate depends on the human actually engaging, so it survives the open-tracking distortion. Open rate is contaminated by MPP, Gmail proxy, and scanners; reply rate is not.
What inflation factor should I use for a corporate-heavy list?+
Higher. Corporate email scanners (Microsoft Defender, Mimecast, Proofpoint) often pre-open every link and image as part of security scanning. Add 15-25 percentage points of inflation on top of the MPP/Gmail baseline for any list that's 50%+ enterprise recipients.
Will my real rate ever look 'good' again?+
Yes, once you measure correctly. A real 25% human-read rate on cold outbound is excellent; teams reporting 65% inflated rates often have 20-30% real rates, which is the actual industry top quartile. Calibrating expectations matters as much as fixing the measurement.
Keep going
Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.