MX Record Lookup
Look up MX (mail exchange) records for any domain. See which mail servers handle email delivery.
What are MX records?
MX (Mail Exchange) records are DNS records that specify which mail servers are responsible for receiving email for a domain. Lower priority numbers indicate higher preference.
If a domain has no MX records, it cannot receive email. Explore our Email Domain Intelligence Directory for deep deliverability audits and MX topologies across 100+ major email service providers.
Need to verify more than one email?
Our free web tools are great for single quick checks. For cold outreach, email marketing, or database cleaning, use MailVeri Bulk.
| Feature | Free MX Lookup | MailVeri Bulk Engine |
|---|---|---|
Syntax & Domain MX Check Detects typos & non-existent domains | ||
Deep SMTP Handshake Pings recipient mail server directly without sending email | ||
Catch-All & Disposable Detection Catches temporary mailboxes & risky accept-all domains | ||
Spam Trap & Honeypot Filtering Protects domain reputation from blacklists | ||
Processing Speed High-speed distributed verification queue | 1 email / lookup | 100,000 emails / ~30 mins |
Batch File Upload Auto-detects email columns with zero setup | Up to 1,000,000 rows (CSV, XLSX, TXT) | |
Trial & Expiration No credit card required | Manual lookups only | 1,000 Free Credits • Never expire |
Why Combine DNS Audits & Bulk Verification?
Fixing SPF, DKIM, DMARC, and MX records protects your outbound domain authentication, while scrubbing your recipient list removes dead mailboxes, catch-all risks, and spam traps that trigger hard bounces and ESP account suspensions.
Keep Hard Bounce Rates Below 2%
Google Workspace, Microsoft 365, and Yahoo enforce strict sender thresholds. Verifying cold outreach and newsletter lists—including isolating catch-all domains without paying $800/100K—keeps your hard bounce rate safely below 2% and protects your sender reputation.
Up to 90% Cheaper List Hygiene
Legacy email verification tools charge $400 to $649 per 100,000 credits. MailVeri delivers 99%+ accuracy starting at $0.0002 per email ($59 per 100K / $299 per 1M non-expiring credits)—see how our rates compare against MillionVerifier, ZeroBounce & NeverBounce, DeBounce, Reoon, and EmailListVerify.
DNS MX Record Lookup FAQs
Read Complete MX Records GuideWhat does MX priority mean in DNS records?
MX priority is a preference number telling outbound servers which mail server to contact first. Lower numbers take precedence (priority 1 or 10 is tried before priority 20 or 50).
Does a valid MX record guarantee an email won't bounce?
No. MX records only confirm the domain accepts mail. You still need live SMTP mailbox verification ($59/100K credits with MailVeri) to confirm the individual recipient exists and detect catch-all or disposable domains.
Need to verify entire email lists?
MX lookup is just one part of email verification. MailVeri also checks mailbox existence, disposable emails, and more.
Try Full Verification Free