Data refreshed daily from live DNS.
No MX records found — this domain cannot receive email.
Should I block emails from burnermail.io?
Yes. burnermail.io is identified as a disposable email service. Users signing up with it usually want to avoid giving a real address — expect high bounce rates and throwaway accounts.
One GET request tells you if any email address is disposable, an alias, or undeliverable — before it hits your database.