The Complete Email Deliverability Playbook : How to Get Out of Email Jail, Escape Spam Filters and Rebuild Sender Reputation

Stop watching your emails vanish into spam folders.

Email providers like Gmail and Yahoo have tightened their filtering rules. Open rates are declining. Subscribers report finding your emails in spam. The problem compounds daily—and most creators don't know how to fix it.

This guide explains exactly why emails get filtered, how to diagnose your specific problem, and step-by-step instructions for rebuilding your sender reputation.

What's inside:

• The 5 leading causes of deliverability problems (and how to identify which one is affecting you)
• Free and paid diagnostic tools to check blacklists, authentication, and sender reputation
• The List Purge Framework for Substack creators—exact filters and re-engagement email templates
• Technical setup guide for other platforms (SPF, DKIM, DMARC configuration)
• Content fixes that prevent spam triggers
• How to prevent the problem from returning

This guide is for:

• Newsletter creators seeing declining open rates
• Anyone whose subscribers report emails landing in spam
• Creators using Substack, ConvertKit, ActiveCampaign, Mailchimp, Hubspot, Go High Level, or other email platforms
• Marketers who need to fix authentication and sender reputation issues

Deliverability problems are fixable—usually within a few weeks. This guide shows you how.