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Free Email & DNS Tools

Diagnose deliverability issues, check blacklists, and inspect DNS records — five purpose-built tools, all free, all instant.

Email Checker Most popular

Verify any email address for deliverability, MX health, and risk signals via a live mailbox handshake. No account needed.

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Email Blacklist Checker

Check if your sending IP or domain is listed on Spamhaus, SORBS, Barracuda, SpamCop, or CBL — instantly.

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DNS Lookup

Retrieve all DNS records for any domain — A, MX, TXT, SPF, DMARC, DKIM, NS, CNAME — in one query.

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Disposable Email Checker

Detect throwaway email addresses against our 262,000-domain disposable provider database. Block fake signups.

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MX Lookup

Find MX records for any domain and identify the email provider — Google Workspace, Microsoft 365, Zoho, and more.

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More tools coming soon

Wave 2 is in development. These tools require additional scoring infrastructure.

Domain Reputation Checker

Aggregate reputation score across major providers.

Coming soon
IP Reputation Checker

Check IP reputation against 20+ threat intelligence feeds.

Coming soon
Spam Score Tester

Analyse email content for spam-trigger patterns.

Coming soon

Need bulk email verification checks?

Upload a list of 100k addresses and get confidence-scored results in minutes. REST API, webhooks, CSV export.

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Free forever — no credit card

Clean lists ship faster.
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300 verifications /mo · five-minute API integration · credit refund on hard bounces. Trusted by senders who treat sender reputation like the asset it is.

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