umuterturk/email-verifier — reverse-engineered prompt

Build me a free privacy first email verifier service that people can call through a simple API. It should check whether an email looks right, whether the domain exists, whether it has MX records, and whether it is disposable, role based, or an alias like Gmail dots and plus addresses. If there is an obvious typo in the domain, suggest the likely correct email.

I also want a batch endpoint where someone can send up to 100 emails and get clear results for each one, while reusing domain checks so it stays fast. Please do not store email addresses anywhere. If caching is needed, only cache domain level results.

Make it easy to run locally with Docker, include basic docs and example requests, and expose metrics so it can be monitored with Prometheus and Grafana. Use Go for the backend. Keep the API open with no login or usage limits. Look up current docs online if you need to.