IGSendMail

Free Email Verifier

Verify any email address in your browser. This free email checker validates syntax, catches domain typos with a “did you mean?” fix, and flags disposable and role-based addresses — so you can check if an email is valid before you send. No signup, no data leaves your device.

What this email checker validates

Every check runs instantly and deterministically in your browser. Together they catch the list-quality problems behind most bounces and spam complaints — before you ever hit send.

Syntax validation

Confirms a valid local part, a single @, and a real domain with a 2+ character TLD using RFC-style rules. Malformed addresses can never receive mail.

Typo detection

Catches near-miss domains like gmial.com, gmai.com, hotmial.com, or outlok.com and suggests the correct spelling with one-click apply.

Disposable domains

Flags throwaway and temporary providers (Mailinator, Guerrilla Mail, 10MinuteMail, YOPmail, TrashMail and dozens more) that never read your mail.

Role-based addresses

Identifies shared inboxes like info@, support@, sales@, admin@, and noreply@ that draw more complaints and rarely convert.

Free vs business

Classifies the domain as a free consumer provider (Gmail, Outlook, Yahoo, iCloud, AOL, Proton) or a custom business domain.

MX & mailbox (honest limit)

A browser can't safely query MX records or perform an SMTP handshake. Real mailbox verification runs server-side — IGSendMail does it automatically for your whole list.

Why verify email addresses?

Protect your sender reputation

Mailbox providers like Gmail and Outlook score every sender on bounce rate, spam complaints, and engagement. Sending to invalid, disposable, or role-based addresses tanks all three signals at once. Verifying first keeps your reputation high so your real subscribers keep landing in the inbox.

Reduce bounces and protect deliverability

A bounce rate above roughly 2% gets you throttled or blocked. Catching typos (gmial.com), throwaway mailboxes, and malformed addresses before you send keeps your hard-bounce rate low and your list deliverable.

Cleaner data, lower cost

Most email platforms bill by contacts or sends. Pruning dead, fake, and risky addresses means you stop paying to email people who'll never open — and your engagement metrics actually reflect real humans.

For confirmed MX records and live mailbox checks across an entire list, IGSendMail includes bulk verification right inside the app — no exporting or third-party tools.

Email verifier FAQ

Paste an email address into the free email verifier above and it instantly checks the syntax, looks for common domain typos, flags disposable and role-based addresses, and tells you whether the domain is a free provider or a business domain. It runs entirely in your browser — no signup, no sending, no data leaves your device.

A disposable (or temporary) email address comes from a throwaway service like Mailinator, Guerrilla Mail, or 10MinuteMail. These mailboxes self-destruct after minutes, so messages bounce or are never read. Our email checker flags them so you can keep them out of your list and protect your sender reputation.

Role-based addresses like info@, support@, sales@, or admin@ point to a shared inbox rather than a single person. They generate more spam complaints, are more likely to trigger filters, and rarely convert. Many providers treat high volumes of role-based recipients as a spam signal.

Partly. This free tool verifies everything that can be checked deterministically in the browser — syntax, typos, disposable domains, role-based addresses, and provider type — without sending anything. Confirming that a specific mailbox actually exists requires an MX lookup and SMTP handshake, which run on a server. IGSendMail does that automatically for your whole list inside the app.

No — MX record lookups and SMTP mailbox checks can't run safely in a browser, so this free tool is honest about that limit. It catches the most common list-quality problems instantly, then hands off to IGSendMail's in-app bulk verification for real MX and mailbox-level results.

Yes. All checks run 100% client-side in your browser using deterministic logic. Nothing is uploaded, stored, or sent to a server, so you can safely paste up to 50 addresses to validate them in bulk.

Verify your whole list, then send with confidence

IGSendMail combines built-in bulk email verification (real MX + SMTP) with 99% inbox delivery, automatic authentication, and bounce management — so clean lists actually land.

Or explore deliverability features and the free deliverability audit.