Email Marketing Analytics: Beyond Open Rates
Understand which email marketing metrics actually drive business decisions in a post-iOS privacy world.
Open Rates Are Unreliable
Apple Mail Privacy Protection inflates open rates by pre-loading tracking pixels. Open rates are no longer a reliable metric for most email lists.
Metrics That Still Work
Click Rate
Percentage of delivered emails that generated a click. The best indicator of content relevance and engagement.Click-to-Open Rate
For segments where opens are still measurable, CTOR shows how compelling your email content is after someone opens.Conversion Rate
Percentage of email recipients who completed a desired action (purchase, signup, form submission).Revenue Per Email
Total revenue attributed to email divided by emails sent. The ultimate performance metric.List Growth Rate
New subscribers minus unsubscribes, divided by total list size. Healthy growth indicates sustainable acquisition.Unsubscribe Rate
Keep below 0.5% per send. Higher rates indicate content mismatch or over-sending.Segment-Level Analysis
Overall metrics hide important differences. Analyze by:
Revenue Attribution
Use UTM parameters on all email links. Compare last-click and linear attribution models to understand email impact on revenue.
Testing Calendar
Run one test per month across your email program. Test send time, subject lines, content format, and CTA placement systematically.
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