Resources
Step-by-step playbooks, free utilities, and guides — everything we publish to help you run a stronger email & SMS program. No sign-up required for tools.
Mini-Tools
SPF, DMARC, DKIM, MX, NS, optional common-subdomain probe, and raw TXT with optional CNAME chain following.
Fix common email domain misspellings in bulk. Paste or upload a CSV.
Character and word counts against Gmail, Outlook, and mobile preview limits.
Paste a DSN or webhook snippet to decode SMTP enhanced status codes.
Playbooks
Actionable checklists — popups, SMS migrations, flows, and more — written from how we ship with clients.
Thought Leadership
Deep dives on deliverability, campaign planning, and retention — plus podcast appearances.
Tech Stack Recommendations
ESPs, popups, reviews, loyalty, and analytics — the retention stack we implement across 450+ brands.