Validate email addresses for correct syntax, domain records and disposable providers before you add them to a mailing list. Free and instant.
The Email Validator checks whether an email address is correctly formatted, whether its domain has valid mail server records, and whether it belongs to a known disposable email provider — three checks that catch most invalid entries before they end up in a mailing list or database. It's built for anyone who needs to clean a list of email addresses before importing it somewhere that matters.
Syntax validation catches obvious typos like missing @ symbols or invalid characters. Domain checking confirms the domain actually has mail server (MX) records configured, which flags addresses at domains that can't receive mail at all. It won't confirm that a specific mailbox exists — that requires either a mail-server probe or sending a real confirmation email — but it filters out the bulk of clearly invalid or disposable addresses quickly.
Syntax, domain mail records and disposable-provider detection catch different categories of invalid or unwanted addresses in one pass.
Paste a list of addresses at once rather than checking them one at a time, useful for cleaning a mailing list before an import.
Temporary email providers are flagged separately, helping keep sign-up forms and mailing lists free of throwaway addresses.
The tool verifies correct syntax and that a domain's mail configuration exists, both strong signals an address is real. Confirming that a specific mailbox is active and receiving mail requires either a direct mail-server probe or sending a real confirmation email, which goes beyond what a client-side check can do.
Disposable or temporary email services let users sign up without giving a real address, which is useful for privacy but a problem for anyone building a genuine mailing list. Flagging these domains separately helps keep sign-up data usable.
For lists in the hundreds or thousands, paste addresses in bulk rather than checking individually — the tool processes each entry the same way and returns a per-address result so problem entries are easy to spot and remove.
It verifies syntax and the domain's mail configuration. Confirming a specific mailbox requires a mail-server probe or a real confirmation email.
Invalid addresses cause bounces, and a bounce rate above roughly 2% damages sender reputation and pushes future campaigns into spam folders.
Yes. Email Validator on Klipza is completely free with no account, no subscription and no watermark on your files, and there is no daily usage limit.
Processing happens locally in your browser wherever technically possible, so your files are not uploaded to a server, stored or shared with third parties.
Yes. It is fully responsive and runs in any modern browser on Android, iPhone, iPad, Windows and macOS — nothing to install.