Email Address Validator
Validate a list of email addresses — syntax, common typos, role addresses and disposable domains.
Quick answer: Validate a list of email addresses — syntax, common typos, role addresses and disposable domains.
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Frequently asked questions
- Does this confirm the email actually exists?
- No — that needs an SMTP probe to the receiving server, which browsers can't do. We catch the most common 80% of invalid addresses (typos, syntax, disposable) without sending any traffic.
- What's a 'role address' and why flag it?
- Addresses like info@, admin@, support@ go to a shared inbox, not a person. They're often blocked by ESPs and have low engagement, so flagging helps you keep your list healthy.
- How big a list can I validate?
- We've tested with 50,000 addresses and the table renders smoothly. Larger lists work too but the table virtualisation isn't smart enough yet to keep scrolling instant.
- Is my list uploaded?
- No — every check runs in your browser. Even confidential lists are safe.
- What disposable domains do you cover?
- About 20 of the most popular (mailinator, guerrillamail, yopmail, sharklasers, tempmail, etc.). For exhaustive coverage you'd want a paid validation API.