Email Verification for Single, Bulk and API Checks
Mailthentic
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Email verification & deliverability platform

Email Verification for Single, Bulk, and API Checks

Check one address, process permission-based CSV or XLSX lists, or create asynchronous API jobs. Review syntax, domain, MX, disposable, role, catch-all, and available SMTP evidence without treating uncertainty as a guarantee.

Check one address Verify CSV or XLSX lists Integrate with the API
No credit card required CSV / XLSX upload Asynchronous job progress

Need domain evidence? Inspect the MX route or review published authentication with the domain health checker.

Overview

+ New ListUpload List
Deliverable
1,322
75.8%
Risky
358
20.5%
Invalid
43
2.5%
Unknown
20
1.1%
Status Distribution
1,743Total
Deliverable1,322
Risky358
Invalid43
Unknown20
Detailed Breakdown
Deliverable75.8% · 1,322
Risky20.5% · 358
Invalid2.5% · 43
Unknown1.1% · 20
Recent Processed Lists
test_job_61.xlsx · 1,743 contactsDONEMay 10, 2026View
Layered
Verification Evidence
DNS + SMTP
Layered Verification
< 5 min
Average Processing
50+
Countries Served
99.9%
Platform Uptime
Sending to 50,000 emails?
One bad list can destroy your sender reputation.
High Bounce Rates
Damage your domain and sender reputation.
Spam Folder
Good emails end up where no one sees them.
Lost Customers
Missed opportunities and lost revenue.
Mailthentic Solves This.
We help you reach the inbox, where it matters.
How it works

Verify. Clean. Organize. Grow.

A simple 4-step process to verify email addresses, clean your email list, and run bulk email verification before every campaign.

1
Upload Your List
Drag & drop CSV or Excel files in seconds.
leads.csv
25,000 contacts
Uploading...100%
2
Verify Each Address
Review syntax, DNS, MX, risk, and available SMTP evidence.
Verifying 25,000 emails
Deliverable21,500
Risky2,800
Invalid500
Unknown200
Deliverable rate86.0%
3
Organize Your Contacts
Filter, search, and manage only verified contacts.
Search contacts...
Deliverable21,500
Risky2,800
Invalid500
Unknown200
4
Export Results
Download CSV or XLSX output for your next approved workflow.
HubSpot HubSpot
Salesforce Salesforce
Brevo Brevo
Mailchimp Mailchimp
Filter ExportSend to CRM
EmailStatusConfidenceCampaign
james@company.comDeliverable
89%
Welcome Campaign
maria@startup.comRisky Catch-all
54%
Product Update
info@temp-mail.comInvalid
6%
--
sophie@business.ioDeliverable
92%
Newsletter
alex@workmail.comDeliverable
88%
Onboarding
Contact management

Your verified email contacts. Ready for your next email campaign.

A reusable, clean contact database with built-in email list management. Filter and segment verified contacts, then sync them to your CRM to protect email deliverability on every send.

  • Advanced filters by status, domain, and campaign
  • Confidence scores so you know what to trust
  • Remove invalid or risky contacts in one click
  • Export clean lists or sync to your favorite CRM
  • Reuse verified lists anytime
Explore Dashboard
Seamless integrations

Connect. Sync. Keep your data clean everywhere.

Two-way CRM integration for email marketing and sales automation. Import lists, verify, and push clean, verified contacts back to HubSpot, Salesforce, Brevo, Mailchimp, Zoho and more.

HubSpotHubSpotSalesforceSalesforceBrevoBrevoMailchimpMailchimpPPipedriveZohoZohoKKlaviyoAActiveCampaign HubSpotHubSpotSalesforceSalesforceBrevoBrevoMailchimpMailchimpPPipedriveZohoZohoKKlaviyoAActiveCampaign
CSV
Mailthentic
Your CRM
Campaign
Layered email validation

See the evidence behind each result.

Each address can include syntax, DNS, MX, SMTP, SPF, DKIM, DMARC, disposable-domain, role, and catch-all signals. Availability depends on the domain and receiving server. The dashboard and email verification API keep uncertain outcomes visible.

Syntax
Validation
DNS
Lookup
MX
Check
SMTP
Verification
SPF
Check
DKIM
Check
DMARC
Validation
Disposable
Detection
Catch-all
Detection
Why it matters

Better email data. Better deliverability. Better campaigns.

Four buckets
Useful Segmentation
Separate valid, risky, invalid, and unknown results so each group can follow a documented policy.
Multiple signals
Transparent Results
Review syntax, domain, MX, risk, and available SMTP evidence without treating uncertain mail server responses as guarantees.
CSV + XLSX
Operational Exports
Keep the detailed audit output or export filtered results for a permission-based sending workflow.

Verification is evidence, not a delivery guarantee. Review uncertain results, preserve consent and suppression data, and use later bounce and engagement evidence to refine decisions.

M
Mailthentic guidance
Result interpretation principle
Join the community

Follow Mailthentic

Deliverability tips, product updates and email marketing insights. Follow us wherever you spend your time.

Frequently asked questions

Email verification evaluates syntax, domain routing, risk signals, and available recipient evidence. It helps teams separate clear failures from risky or unknown results before a send.

No. DNS lookups and SMTP checks do not deliver a message to the submitted address.

Yes. Upload a CSV or XLSX file, follow job progress, review valid, risky, invalid, and unknown results, then export CSV or XLSX.

Yes. Mailthentic checks maintained disposable-domain data and tests catch-all behavior when the receiving server permits it. Role-based addresses remain a separate signal.

Eligible new accounts receive 50 verification credits without a credit card. Repeat-account risk controls can withhold the grant.

Ready to improve your deliverability?

Upload a permission-based list, review the evidence, and export the result that fits your sending policy.

No credit card required · Cancel anytime