Email Validation API: Clean Lists, Boost Deliverability & Maximize ROI.
Remove fake emails and spam users from your email lists.
“Mails.so delivers all we need in an email validation service: top security, scalability, performance, and extensive integrations”.
What does mails.so exactly do?
tl;dr — Remove invalid recipients, block fake users and bots, prevent fraud, and help you save money.
Place us after your sign up forms and landing pages.
We'll make sure you only get real users.
Use cases for mails.so
If you're running a newsletter, an e-commerce, a SaaS, or marketing campaigns, mails.so is for you.
Email marketing
Protect you from emailing non-existent addresses, which can increase your bounce rate and damage your reputation.
Bot signups
Detect invalid addresses before they register, prevent spam and fake users and keep a high quality user database.
Fraud prevention
Detect disposable email addresses, catch users trying to use multiple accounts and prevent fraud before they can do any harm.
“Mails.so delivers all we need in an email validation service: top security, scalability, performance, and extensive integrations”.
No-code integrations with your favourite tools
We've built simple integrations with the most famous no-code tools. Start building today with🧡 Zapier or 💜 Make.
Up and running now, then, and always
We know how important it is to have a reliable service. That's why we've built a rock solid service that has been running with a 99.9% uptime consistently.
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
per month
- Enable list validation
- Unlimited validations
- 99.99% Guaranteed Uptime SLA
- Priority support
Unlimited
per month
- Enable list validation
- Unlimited validations
Business
per month
- Enable list validation
- 50,000 validations per month included
- $0.002 per extra validation
Pro
per month
- Enable list validation
- 10,000 validations per month included
- $0.005 per extra validation
Frequently Asked Questions
Can’t find the answer you’re looking for? Don’t hesitate to get in touch with our customer support team.