MX Lookup
Look up the live MX records for any domain, sorted by priority, and see exactly which servers accept its mail. Check a domain free before you send.
The first thing every verifier checks.
MX (Mail eXchanger) records tell the world which servers accept mail for a domain. No MX means the domain can't receive email at all — an instant invalid.
- 01
We query live DNS
Enter a domain and we resolve its MX records straight from public DNS — the same lookup a sending mail server performs.
- 02
Sorted by priority
Lower priority numbers are preferred. We sort them so you can see exactly which server mail hits first and what the fallbacks are.
- 03
Read the provider
The hostnames reveal the mail provider — google.com, outlook.com, a spam filter, or a self-hosted server — useful context for deliverability.
MX records, answered.
Related free tools.
MX checks out — but does the mailbox?
MX is step one of twenty. EmailListChecker adds SMTP, catch-all, disposable and trap detection for a real verdict. Try it free.