substack-basics

Email list cleaning and scrubbing: spam traps, catch-alls, disposables and dead addresses

Substack List Hygiene Checklist for Writers with 5000+ Subscribers

Clean your Substack list with this actionable 2026 checklist. Remove dead emails, avoid bounces, and boost deliverability with real verification tools.

Engagement, segmentation and campaign benchmarks

Substack Subscriber Activity Column: What the Engagement Labels Mean

Decode Substack's engagement labels. Learn what each score means and how to use them to improve email campaign performance. Start with a clean list today.