Free MX Lookup
Run an MX record lookup for any domain, spot priorities and provider fingerprints, and catch delivery risks before they become delivery problems.
MX overview
Healthy MX coverage
ReadyMX records
3 live routes
Failover
Layered priority
Nameservers
2 detected
Mail servers
Ordered by priority
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
How
How to run an MX record lookup
Check a domain's mail routing, provider fingerprint, and delivery risks in three steps.
Step 1: Enter a domain
Step 2: Review mail routes
Step 3: Add market context
Why
Why MX records matter
Mail exchange records reveal how a domain receives email and where technical risk or provider changes might be hiding.
Verify deliverability paths
Spot migrations and weak links
Turn technical clues into competitive context
FAQs
Frequently Asked Questions
Got doubts? We've got answers. Here are some of the most common questions and answers.
Still have questions? Our team is here to help!
An MX record lookup checks the mail exchange records for a domain. Those records tell email senders which mail servers accept inbound mail and in what priority order.
Lower numbers have higher priority. Mail servers try the lowest-numbered MX host first, then move to higher numbers if the primary route is unavailable.
Some domains intentionally do not receive email. Others rely on SMTP falling back to the root domain A or AAAA record, which is valid but less explicit and harder to troubleshoot.
They should not. MX targets are expected to point directly to hosts with A or AAAA records. A CNAME in the path can cause delivery problems and confusing DNS behavior.
The provider fingerprint helps you identify the mail platform quickly, while the nameserver list shows which DNS host is authoritative before you start changing records or debugging delivery.
Add market context
Need more than a one-time mail setup check?
The MX records tell you how a domain routes email. The full report shows pricing, features, reviews, SEO, and ads so you can see the broader go-to-market picture.
Competitive Intelligence Report
22 pages of competitive intelligence. Built for founders who need sharp market context without hiring an analyst.
$129
Everything you get in your report:
Pricing Fully Exposed
See exactly what competitors charge, their tiers, trials, and guarantees.
Feature Matrix: Build vs Skip
Table stakes every competitor has. Differentiators only 1-2 have.
Reviews You Can Use
Real quotes from G2, Capterra, Trustpilot, and TrustRadius. Ready for your site, demos, and positioning.
10 Competitors Mapped
Direct, indirect, and alternatives. Positioning, ICP, and differentiators.
SEO Gaps Worth Targeting
Keywords they rank for, you don't. With "Quick Win" tags.
Their Best-Performing Ads
Top-performing Google & Meta ads. Landing page screenshots with CTAs.
15+ Data Sources
APIs, LLMs, scrapers. Data ChatGPT can't access.
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