Flagship Verification Tool

Email Verifier

Clean your outbound prospect list live. Detect disposables, role accounts, and syntax errors.

Performs live RFC 5322 syntax validation, DoH MX record lookup, disposable burner blocklist, and role prefix detection. 5 emails detected

How It Works in 3 Simple Steps

01

Paste Emails

Paste up to 50 emails, one per line or separated by commas.

02

Multi-layer Checks

Evaluates syntax, domain records, disposable email blocklists, and role accounts.

03

Export Clean CSV

Download verified clean emails to prevent bounces and protect your sender score.

Pro Tips for Maximum Performance
  • Always verify contact lists quarterly before uploading to sending infrastructure.
  • Exclude all disposable domains immediately from cold outreach campaigns.

Frequently Asked Questions

Google, Outlook, and major ESPs track bounce rates. Bounces exceeding 2-3% quickly trigger spam filtering or sender suspension.

Addresses like info@, support@, or sales@ that are shared by teams. These have low engagement and high spam complaint rates.

Related Free Outbound Tools

Domain Health Checker

Score your sending domain in one click: MX, SPF, DKIM, DMARC, BIMI, and MTA-STS, with copy-paste DNS fixes for anything that fails.

Email Permutator

Generate every likely work-email pattern for a person at a company, ordered by how commonly B2B companies use them.

Cold Email Grader & Spam Checker

Grade a cold email on length, readability, “you” focus, links, call to action and scan against 150+ spam trigger words.

Want Guaranteed Pipeline Without Running Tools Manually?

Koravio builds, verifies, and runs end-to-end autonomous outbound infrastructure that books 15–30 qualified B2B meetings per month on 100% pay-on-performance.

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