Verify an email address's syntax and check that its domain can actually receive mail (MX lookup).
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Form fields with typos and dead domains poison your email list and hurt deliverability. This validator first checks the syntax of an address, then queries the domain's MX records to confirm it's configured to receive mail at all. It catches the bulk of fake or mistyped addresses without ever sending a probe email.
Type or paste the email you want to inspect into the input field at the top of the page.
Click the check button — the tool queries live data sources and returns results in seconds.
Review each finding: status, score, and the reason behind every warning are listed line by line.
Follow the linked remediation guides to fix issues, or copy the report to share with your team.
When something in your stack misbehaves, half the battle is figuring out whether the problem is you, the network, or the other side. Email Validator gives you a fast, opinionated readout so you can rule things in and out in seconds. Because the check runs on live infrastructure and reports raw results — not marketing-safe summaries — you can trust what you see and act on it. Toolzer's design philosophy is simple: privacy-first (no tracking, no accounts), performance-first (the page is interactive in under a second on a 3G connection), and honesty-first (no fake ratings, no dark patterns, no upsells). Email Validator follows the same rules as every other utility on the site. You can bookmark this page, share the URL with a colleague, or pin it to your browser's toolbar — the experience will be identical every visit, and it will keep working even if you're on airplane Wi-Fi. Real people use this tool for real work — freelancers cleaning up client deliverables, sysadmins triaging tickets, students finishing assignments — and it is tuned for those workflows, not for demo videos.
No. It confirms the syntax is valid and the domain has live MX records. SMTP probing the mailbox itself is unreliable and treated as abuse by most providers.
A domain without MX records cannot receive mail — any address there will hard-bounce. MX presence is the cheapest single check that rules out most fakes.
Syntactically yes, and the MX always exists, but the individual mailbox might not. Use a confirmation email for the final proof.
This UI handles one address at a time. For bulk validation use a dedicated provider — running thousands of MX queries from one IP gets you rate-limited.
No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration.
Yes. Whenever the tool can produce an answer entirely in the browser, the data never leaves your device.
Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, and every modern mobile browser.
Yes. Every Toolzer page has a clean permanent URL you can bookmark or share.
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