Intended Audience:
Email List Managers and Growth Marketers
When to Use:
Quarterly to audit list hygiene and prune non-responsive addresses.
Prerequisites:
Subscriber engagement data (last open/click date) and suppression list setup
Format & Access:
Open Markdown / Direct Copy (No form gating)
Actionable Resource ContentLast Reviewed: September 2026
## Phase 1: Segmentation & Hygiene Audit
- [ ] Isolate subscribers with zero opens/clicks in past 90-180 days
- [ ] Exclude active paying customers and ongoing service clients
- [ ] Run isolated segment through third-party email verification to remove dead domains
## Phase 2: The Two-Touch Re-engagement Campaign
- [ ] **Touch 1:** Send 'Are you still interested in [Topic]?' with quick preference buttons
- [ ] **Touch 2 (5 days later):** Send 'Permission to close your account?' notice with one-click stay subscribed link
## Phase 3: Automated Suppression
- [ ] Contacts who do not interact after Touch 2 are tagged 'Status: Inactive Suppressed'
- [ ] Exclude suppressed contacts from all regular marketing campaigns
- [ ] Monitor Google Postmaster Tools for delivery rate improvements