About Harmonix
Harmonix focuses on DNS behind email systems. We help domain maintainers review mail routing and verification text, and explain where different records live. The tool displays public records; it does not guarantee delivery, calculate spam scores or automatically certify authentication settings.
Email DNS checks
Mail routing and authentication use different records. Query the right name before comparing the answers.
- MX — Incoming mail servers
- TXT — SPF and verification text
- CNAME — Provider-managed aliases
Where the answers come from
The Harmonix server sends queries to Google Public DNS. The interface presents each answer’s name, type, data and TTL. Downloaded files contain the results already displayed on the page and do not trigger another lookup.
What this service does not do
We do not manage your domain, request your DNS account password or modify any records. We do not promise worldwide propagation coverage, automatic repairs or availability of the services behind a domain.