Bulk Email Validator
Paste a list of email addresses — one per line — to validate format and detect common issues instantly.
What does an email validator check?
This bulk email validator checks each address for: correct format (local part, @ symbol, domain), valid domain structure (TLD, no double dots), common typos in popular domains (e.g. gmial.com), and known disposable/temporary email domains. It does not send a request to the email server — for that level of verification you need a dedicated email verification API.
When should you validate email lists?
Before sending a marketing campaign, importing contacts into a CRM, or processing user registrations. High bounce rates damage your sender reputation and can get your domain blacklisted by email providers.
Does this tool send test emails?
No. Validation is done by checking the email format and domain structure locally in your browser. No network requests are made and no emails are sent.
What are disposable email domains?
Disposable email services like Mailinator, Guerrilla Mail, and 10MinuteMail provide temporary addresses that expire quickly. They are commonly used to avoid spam but are usually unwanted for business contact lists.
How many emails can I validate at once?
There is no hard limit. The tool processes thousands of emails instantly in your browser since validation is purely text-based.