What it does

The Email Auth Deliverability Doctor is a diagnostic tool designed to audit SPF, DKIM, and DMARC records for common misconfigurations that lead to high bounce rates and spam folder placement. It analyzes DNS zone files, dig outputs, or nslookup text to identify technical errors and alignment issues.

Why use this skill

Manually debugging email authentication records is error-prone. This skill automates the process by checking your records against a comprehensive audit checklist. It helps you catch syntax errors, multiple SPF records, missing DMARC policies, and misalignment between signing domains and sender addresses without the risk of an automated tool making unauthorized changes to your live DNS.

Supported inputs

DNS zone file exports
Terminal output from dig or nslookup
Local DNS configuration text files

What the output looks like

The skill produces a structured audit report including the specific rule violated, the severity of the issue, direct evidence from your records, and clear remediation guidance to fix the deliverability problem.