Reach more customers with the industry’s fastest and most accurate email validation tool

Outdated and unwanted email addresses lower deliverability across the board. Verify email addresses, bounce less and land more emails in inboxes with Mailgun’s email validation tool.

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Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

unmatched accuracy

Reach more inboxes effortlessly

Unlike standalone validation tools, Mailgun cross-references your email list against our database of over 450 billion emails to flag undeliverable and high-risk addresses before you hit send.

  • Send more. Pull bad email addresses from your list in real time and improve sender reputation while lowering bounce rates by up to 21%

  • Send smarter. Use our proprietary engagement data for more personalized targeting and increase open rates by up to 65%

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Protect your data and customers

Privacy is paramount to customers of your business, which is why we strive towards leading the way for compliance and security in email:

• SOC types I & II certified

• GDPR compliant

• HIPAA compliant

• ISO 27001 certified

• PCI-compliant SAQ-A merchant

Looking for additional compliance standards or looking for our DPA? Our security portal has a comprehensive list of all our data practices, protections, and compliance standards across the Sinch Email portfolio.

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Benefits

Do more with the industry’s best validation tool

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Check one email address or a million

Verify and remove high-risk emails in bulk by uploading CSV files, or integrate our validation API directly into your platform.

Plus, embed real-time validation on signup pages and forms to remove bad addresses before they land on your list.
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Actionable results, faster

Preview your list in aggregate for a free health snapshot so you know when it’s time to validate.

Validating millions? Upload your CSV and grab a cup of coffee — your results will be ready in minutes. Mailgun delivers unmatched speed, performance and accuracy.
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Send smarter, more personalized sends

With a data set powered by over 450 billion emails sent annually, spot and remove more bad emails before you hit send.

Predict how users will receive and interact with your emails using our proprietary engagement data for higher converting emails every send.

Validate with confidence

Find way more than bad email addresses. Mailgun checks email addresses against our own cached data and directly with mailbox providers to verify every address on your list.

Mailbox/MX verification


Unique risk scores + email alias identification


New or risky domain analysis


RFC grammar rule check + suggestions for suspected typos


Role-based address verification


Disposable + catch-all address verification


Don’t just take our word for it

See why over 150,000 companies are sending emails with Mailgun

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“Mailgun email validations API is simple and incredibly accurate. It allows our customers to make changes to their email address quickly, which only adds to the product’s value-add.”
Joe Dan Gaylean VP, Software Development at Cinemark