Email Verification Service
Email Address Verification Checker
Check if an email address is valid or not with Mailgun's fast and simple email verification tool. We send billions of emails every month — and we use this data to build the fastest and most accurate set of email verification data available.
Protect Your Business
A bad email address is a lost customer
Over 20% of your email database will go bad this year. Invalid email addresses result in unnecessary bounces, drive down your engagement metrics, damage your sender reputation, and cost you money.
How much time and money are you wasting on bad leads?
Mailgun’s entire business is sending email. We send more than 250 billion emails every year, so we’ve hashed the majority of active email addresses. We know what’s deliverable and what’s not.
Plus, our quick Email Verification software is part of an integrated suite of deliverability features and services. You don’t have to worry about wasting time and effort switching between different platforms and data sources.
Instant Email Verification
The InboxReady advantage
Better. Faster. Safer. Find out what you can do with our Email Verification features.
Cut down on bouncebacks
Customers who verify email addresses with us before they send have a 21% lower bounce rate, dramatically improving their delivery rates.
Save time for yourself and your customers
InboxReady provides the fastest Email Verification service in the industry. We minimize latency to ensure that your signup, checkout, or form submission page never slows down.
When verifying large contact lists, you can get your results in minutes instead of hours or days. Need to clean a list with millions of addresses? Walk to the break room, grab a cup of coffee, and come back to a clean email list.
Let's Talk Mailgun
Versatile Features and Smooth Integration
Verify both current and new addresses
Check email validity at signup to make sure you’re capturing good data. Clean your list periodically to make sure it stays that way.
Real-time Email Verification API
Verify email addresses at the point of capture to reduce invalid signups with our real-time Email Verification integration.
List verification feature
Clean your subscriber list of invalid emails before you send. Our list verification feature is as simple as uploading a .csv.
Not sure whether your list needs a clean? Run a list preview for free. This test version of our Email Verification feature assesses a statistically significant sample of your list so that you can decide whether you need to clean the rest.
Best-in-Class Email Verification
Industry-leading, proprietary features for optimal results
All of our deliverability features are built in-house, from the ground up, backed by our years of expertise sending email. Verify your entire email list at once and reduce email bounce rates. Easily identify valid email addresses, role-based addresses, typos, and more. InboxReady Email Verification features go beyond simple grammar rules — we check email addresses directly with the mailbox to confirm that every address on your list is real. That’s accuracy you can rely on.
Lightning-fast Email Verification
Role-based address verification
Disposable address verification
Catch-all address verification
Suggestions for suspected typos
RFC grammar rule check