List verifications

Bulk email list cleaning

Protect your sender reputation keeping your lists free from spam traps, bounces, disposable and catch-all emails.

Try it freeNo credit card required

Integrates with your favorite tools

Integrations
1

Upload your list from any source

If you're running a newsletter, an e-commerce, a SaaS, or marketing campaigns, mails.so is for you.

Upload file

Validate lists uploading CSV, Excel, or plain text files

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Integrations

Validate lists from MailChimp, HubSpot, or any other marketing tool

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API Validation

Validate email lists programmatically via bulk validation API

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2

Understand your email list results

We give you insights and statistics about your email list, so you can make better decisions. You will also be able to inspect the results, see the reason some addresses are invalid, and download the good ones.

Start for free
Integrations

Integrations
3

Export your clean email lists

After validating your list, export your filtered list to only include the clean addresses, in the format that you prefer.

Get started

What else is included for your business' lists

If you're running a newsletter, an e-commerce, a SaaS, or marketing campaigns, mails.so is for you.

Support

Human support always available to help you with everything you need

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Pricing

The most affordable pricing in the market, with no hidden fees

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Reliability

Reliable service you can trust, with a 99.9% uptime record

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Get started with 85% off your first month

All paid plans include API access and list validation.
Need extra validations? No problem. We've got you covered.

Enterprise

$1,899
per user
per month
  • Enable list validation
  • Unlimited validations
  • 99.99% Guaranteed Uptime SLA
  • Priority support

Unlimited

$249$37.35
per user
per month
  • Enable list validation
  • Unlimited validations
Most popular

Business

$49$7.35
per user
per month
  • Enable list validation
  • 50,000 validations per month included
  • $0.002 per extra validation

Pro

$24$3.60
per user
per month
  • Enable list validation
  • 10,000 validations per month included
  • $0.005 per extra validation