Free email tools for cold outreach

Find a work email, verify and clean your list with industry-leading catch-all resolution, and spam-check your cold email copy. The same engine that powers the paid OrbiSearch dashboard, free and with no signup.

Pro Tip: These free tools share OrbiSearch's industry-leading catch-all resolution. Sign up to validate emails at scale, get API access, and process up to 100,000 emails per list.

Email finder & validation

Available Now
Free Email Validator
Verify a single email address in under 2 seconds without sending a test email. Industry-leading catch-all resolution that outperforms BounceBan, Icypeas, and Enrichley on real campaign data.
Verify a single email instantly
No test emails sent to the address
Industry-leading catch-all resolution
Try Free Email Validator
Available Now
Free Bulk Email Validator
Upload a CSV or paste up to 100 emails per day. Validate every address against the same V3 engine that verifies catch-all mailboxes, then download a cleaned list in seconds. Tested at 96.3% bounce-prevention accuracy with the lowest false positive rate of any catch-all validator we tested.
100 emails per day, free, no signup
CSV in, cleaned CSV out
Same V3 engine as the paid dashboard
Try Free Bulk Email Validator
Available Now
Free Email Finder by Name
Find any professional email address by name and company domain. OrbiSearch discovers and verifies the correct work email against the live mail server in real time, returning a deliverable result in seconds. 75%+ find rate on real-world data.
3 free lookups per day, no signup
Every result verified against live mail servers
Same engine as the paid API
Try Free Email Finder

Email deliverability

Available Now
Free Cold Email Spam Checker
Paste your cold email copy and see what content-based spam filters flag, scored by the real SpamAssassin engine. Get the overall score against the 5.0 spam threshold, a plain verdict, and every rule that fired with a plain-English fix, so you can reword the triggers before you send.
Free, no signup, instant
Scored by the real SpamAssassin engine
Plain-English breakdown of every rule
Try Free Cold Email Spam Checker
Coming soon
Blacklist Checker
Check whether your sending domain or IP is listed on the major email blacklists.
Checks Spamhaus, SURBL and major blocklists
Domain and IP reputation
Coming soon
Coming soon
DMARC, SPF & DKIM Checker
Check that a sending domain's SPF, DKIM, and DMARC records are set up to authenticate your mail.
Verifies SPF, DKIM and DMARC records
Catch misconfigured authentication
Coming soon

Which tool should I use?

Common scenarios. Pick the one that matches what you're trying to do.

Verify ONE address

You're prospecting manually and found a single email. Check if the email is deliverable before you spend time writing outreach.

Use Free Email Validator

Clean a LIST

You just exported a CSV from Apollo or ZoomInfo. Strip invalid addresses before your campaign goes out.

Use Free Bulk Email Validator

Find a WORK EMAIL

You know a person's name and company but not their email. Find and verify their work address in seconds.

Use Free Email Finder

Check your COPY

You've written a cold email and want it to land in the inbox. See what content-based spam filters flag before you send.

Use Free Cold Email Spam Checker

Automate at SCALE

You need API access, 100,000+ emails per list, or want to integrate email lookup or validation into your contact enrichment workflow.

Use OrbiSearch Dashboard

These tools are just the beginning

Sign up for OrbiSearch to unlock industry-leading catch-all verification at scale, outperforming BounceBan, Icypeas, and Enrichley on real campaign data.

Why choose OrbiSearch?

Join the GTM Engineers and data platforms who trust OrbiSearch to validate catch-all emails and maximize their outreach

Market-Leading Accuracy

Validate significantly more catch-all emails than competitors

Instant Results

Get results in seconds, not 48 to 72 hours like email-sending validators

Industry-Leading Accuracy

Lowest false positive rate among catch-all validators

Expand Your Reach

Validate more contacts from every list you process