E-mail Validator

Instantly check if an email address is valid, formatted correctly, and has a reachable domain.

Home E-mail Validator
Our free Email Validator verifies the syntax of an email address and checks the domain's MX records to ensure it's a deliverable address. Essential for cleaning mailing lists, reducing bounce rates, and verifying user data. Validate email address now!

Enter email addresses to validate, one per line. Example: user@example.com

Privacy Notice

All validation happens in your browser. No email addresses are sent to any server.

Client-Side Only

Keyboard shortcuts: Ctrl+Enter to validate, Esc to clear all

  1. 1 Enter Email Address: Input the email address you need to verify (e.g., `test@example.com`).
  2. 2 Validate: Click "Check Email Validity".
  3. 3 Analyze Report: The tool checks the syntax, verifies the existence of the domain, and often performs an MX record lookup to confirm the server is configured to receive mail.

Does this tool send an email to the address?

No, a reliable email validator checks the syntax and performs a server-level handshake (SMTP check) without sending a message, ensuring the process is non-intrusive.

Why is email validation important for business?

It reduces your bounce rate, which improves your sender reputation, keeps your IP address off blocklists, and ensures your marketing and transactional emails are delivered.

What is a "catch-all" address?

A catch-all server accepts mail for all addresses at a domain, even invalid ones. The validator can detect this, but it means a simple validity check can't confirm the user exists.

List Cleaning

Example Keyword: verify bulk email list validity
Clean out invalid, bounced, or syntax-incorrect addresses from your mailing list before a campaign.

Form Verification

Example Keyword: check email address for errors
Validate user input on registration or signup forms in real-time to ensure data quality.

Spam Trap Prevention

Example Keyword: check domain MX record deliverability
Confirm the domain's server is correctly configured to receive mail, preventing a high bounce rate.

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