High unsubscribe rate
Unsubscribe or list-unsubscribe activity spikes, signaling relevance, frequency, or consent problems.
- Reading time:
- 5 min
- Difficulty:
- Intermediate
- Estimated duration:
- 5 min
- Prerequisites:
- None
- Last updated:
- 2026-07-15
- Author:
- empire
Problem summary
Unsubscribe or list-unsubscribe activity spikes, signaling relevance, frequency, or consent problems.
Severity: Medium
Symptoms
- Unsubscribe rate above normal for the stream
- Spam complaints may rise with unsubscribes
- Particular campaigns or frequencies correlate with opt-outs
Possible causes
- Over-mailing or poor cadence
- Content mismatch with acquisition promise
- Broken preference center forcing full opt-out
- Purchased or weakly permissioned lists
How to diagnose
- Segment unsubscribes by campaign, cohort, and acquisition source
- Confirm one-click unsubscribe works end-to-end
- Compare complaint rate movement
How to fix
- Reduce frequency and improve targeting
- Offer preferences before full unsubscribe where appropriate
- Stop mailing non-permissioned cohorts
How to verify
- Unsubscribe rate returns to baseline
- Complaint rate does not rise as a substitute signal
Prevention
- Set cadence expectations at signup
- Honor unsubscribes immediately
When to escalate
- Production mail is failing for a material share of recipients after remediation attempts