Know exactly which emails are real.

SMTP-level verification — syntax checks, MX lookup, disposable detection, catch-all probing and a live mailbox handshake with the receiving mail server.

✓ Syntax✓ MX records✓ Mailbox handshake✓ Catch-all detection✓ Disposable filter

Bulk verification

Single check

CSV splitter

Bulk verification

Drop in a CSV or TXT — emails are picked up from any column, one per line or comma-separated.

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Drag & drop your file here, or click to browse

Email	Status	Confidence	SMTP	Notes

ValidMailbox confirmed by the receiving mail server.

InvalidBad syntax, no MX records, or the server rejected it.

RiskyCatch-all domain — the mailbox can’t be confirmed.

UnknownGreylisted, throttled, or the provider accepts everything.

UncheckedLite mode — syntax & MX passed, mailbox not verified.

emailvaildation.tech · Verification runs on your own server — your lists never leave your infrastructure.

Bulk verification

Single email check

CSV splitter