Email Domain Doctor inspects the public email DNS setup of any domain. It validates MX records, checks SPF configuration and mechanism policies, parses DMARC policies and reporting addresses, and optionally inspects DKIM records when a selector is provided.
Check the marketplace listing or publisher’s documentation for supported actions and examples.
Ranking history
Browse the order shown in the public ChatGPT Plugins directory on each capture date. Popular is a curated collection. OpenAI does not publish install or usage counts here.