Verify Any Email Address Before You Hit Send
Stop guessing. Tomba's email verifier runs 7 deep checks MX, SMTP, mailbox, catch-all, disposable, and more to guarantee deliverability and protect your sender reputation.
Try it free no signup required
Sign up for 75 free searches per month no credit card required.
Real-world view of the Email Verifier in action
Based on verified reviews
The Most Accurate Email Verifier on the Market
Tomba has the largest B2B email crawler on the web. We process billions of pages monthly so you always get the freshest, most accurate data.
Independent 5,000-Lead Benchmark
Same input file, same conditions, every provider. Raw results, no spin.
Tomba.io
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Skrapp
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ProspeoMore Data, Less Money No One Comes Close
Every plan includes free verification credits, phone data, and credits valid for 12 months.
Email verifier features
SMTP Verification
Connect directly to the mail server to confirm the mailbox exists and can receive messages the most reliable deliverability check available.
Syntax Validation
Catch malformed addresses before they waste your credits. Validates format, characters, and structure against RFC standards.
Domain & MX Validation
Confirm the domain is active, properly configured, and has valid MX records to accept incoming email.
SMTP Provider Detection
Identify the exact email provider behind each address Google Workspace, Microsoft 365, Yahoo, and more for smarter segmentation.
Misspelled Domain Detection
Catch common typos (gmial.com, yahho.com) and suggest corrections automatically. Recover contacts that would otherwise bounce.
Disposable Email Detection
Identify temporary and throwaway services like Guerrilla Mail, Temp-Mail, and 500+ others. Keep fake signups out of your list.
Role-Based Detection
Flag generic group addresses (info@, support@, sales@) that do not belong to a specific person so you only contact real decision-makers.
Accept-All Detection
Identify catch-all servers that appear to accept everything but may still bounce. Tomba goes deeper to assess actual deliverability.
Mailbox Full Detection
Detect email addresses with full mailboxes that cannot receive new messages avoid wasting sends on unreachable contacts.
No-Reply Detection
Identify no-reply addresses that should never be contacted or added to outreach lists. Keep your campaigns clean.
Tag & Alias Detection
Detect addresses with tags (user+tag@domain) that may indicate test accounts or filtered addresses.
Secure Gateway Detection
Identify addresses protected by Proofpoint, Mimecast, Barracuda, or other secure email gateways for accurate verification.
Email Quality Score
Every email receives a quality score from 0 to 100 based on all verification checks combined one number, clear decision.
Name & Gender Enrichment
Enrich email addresses with first name, last name, and gender based on pattern analysis add context to every contact.
Email Verification API
Integrate real-time verification into your app with our REST API or official SDKs for Node.js, Python, PHP, Ruby, Go, and more.
Unlimited API Keys
Create unlimited Private or Public API keys with Live or Test modes for flexible, scalable integration.
50+ Integrations
Connect with ActiveCampaign, Brevo, HubSpot, Mailchimp, Salesforce, Zapier, Make, and many more your workflow, your way.
Team Accounts & Permissions
Share credits, manage usage, set granular permissions, and collaborate across your organization with full control.
Automatic Deduplication
Automatically detect and remove duplicate email addresses from your verification lists pay only for unique contacts.
Anti-Greylisting Technology
Proprietary systems that handle greylisting protocols for the fastest, most accurate verification results in the industry.
Ways to use Email Verifier
Email Verifier
Verify any email address and get instant deliverability status
Chrome Email Verifier
Verify emails directly from any website you visit one click
Bulk Email Verifier
Upload your entire email list and verify thousands of addresses at once
Sheets Email Verifier
Verify email addresses directly inside Google Sheets no switching tools
Excel Email Verifier
Verify email addresses directly inside Microsoft Excel no switching tools
API Email Verifier
Integrate real-time email verification into your app with our REST API
How Email Verifier Works
Three simple steps to verify any email address and know it will deliver
Use Email Verifier everywhere you work
Browser extensions, spreadsheet add-ons, REST API, and native integrations pick what fits your workflow.
Email Verifier works differently
Most tools
Basic MX and syntax checks only
Cannot verify catch-all domains mark as unknown
No disposable or spam trap detection
Slow bulk processing with no real-time option
High false positive rates damage sender reputation
Tomba
Deep verification: MX, SMTP, catch-all, disposable, and spam trap detection
Verify catch-all emails that other tools give up on
Real-time single verification and bulk CSV processing
Guaranteed under 5% bounce rate or credits refunded
Free verification included with every email found
Trusted by sales teams worldwide
“The verification accuracy is outstanding. We <mark>reduced our bounce rate from 12% to under 2%</mark> after switching to Tomba.”
“Tomba is my go-to to validate emails. Even in a waterfall process with multiple tools, Tomba is <mark>usually the top choice</mark>.”
Ready to verify emails that actually deliver?
Stop guessing. Verify your email lists with guaranteed under 5% bounce rate. Trusted by 150,000+ professionals. Free credits on signup.
Under 5% bounce rate
GDPR Compliant
450M+ contacts
Data updates
Quick answers about Email Verifier
Here are the most common ones we get.
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