Email Validator

Check whether an email address follows a valid syntax, live as you type.

Valid format
Local part
Domain

This checks syntax only — it cannot confirm the mailbox actually exists or accepts mail.

This validator checks general email syntax rules (one @, a valid domain with a dot, no invalid characters) — it does not, and cannot, verify that the mailbox actually exists.

Frequently asked questions

How do I check if an email address is valid online?

Type the email address into the input box — the format is checked live, and the local part and domain are shown separately.

Can this tool tell me if the email actually exists?

No — checking whether a mailbox is real and accepts mail requires actually sending it a message or querying the mail server; this tool only validates syntax.

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