Metric
Email unsubscribes per campaign
Unsubscribes divided by emails delivered, per campaign. A guardrail for email triggers and win-back flows; lower is better.
Plain label: email opt-outs per sendAlso known as: unsubscribe rate, email opt-out
Keep spam complaints under 0.1% and never reach 0.3%, the limit in Gmail and Yahoo bulk-sender rules since February 2024 (benchmark confidence A). When LinkedIn weighed sessions against unsubscribes and complaints, it cut email volume substantially without a significant loss of engagement Evidence grade A. Robust evidence: replicated, peer-reviewed research..
Benchmarks
Every benchmark carries its year and a confidence grade for its source. Use them to calibrate, not as targets.
| Context | Median | Top 25% | Top 10% | Source |
|---|---|---|---|---|
| unsubscribes per campaign send, all industries (lower is better) | 0.22% | — | — | Mailchimp email benchmarks, 2023Benchmark confidence B. A reputable dataset. |
Sources
Email marketing benchmarks · Mailchimp, 2023
Benchmark confidence B. A reputable dataset.Email Volume Optimization at LinkedIn · Gupta et al., KDD 2016, 2016
Evidence grade A. Robust evidence: replicated, peer-reviewed research.
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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