Simple email validation
for everyone
Remove fake emails and spam users from your email lists. Validate if an address is valid, and if it can receive email, ⏱️ in under 0.5 seconds.
OR
“Mails.so delivers all we need in an email validation service: top security, scalability, performance, and extensive integrations”.
What does this exactly do?
tl;dr — Remove invalid recipients, block fake users and bots, preventing fraud, and 💸 saving thousands of your precious dollars.
Place us after your sign up forms and landing pages.
Save *a ton* of money.
What can I use this for?
Email marketing
A small business owner or marketer trying to promote your products or services through email.
Prevent you from sending emails to non-existent addresses, which can damage your reputation and lead to your emails being marketed as spam.
Spam signups
Running a website with a user signup page, or a newsletter subscription form that asks for an email.
Detect invalid addresses before they register, prevent spam and fake users and keep a high quality user database.
Fraud prevention
An online retailer or service provider who wants to prevent fake accounts from being used at checkout.
Detect disposable email addresses, catch users trying to use multiple accounts and prevent fraud instantly.
“Mails.so delivers all we need in an email validation service: top security, scalability, performance, and extensive integrations”.
No problem.
We've built simple integrations with the most famous no-code tools.
tough as a brick.
Try us out in a second, integrate us in a minute, and stick with us forever.
Don't overthink it — we're fast (🚀 ~500ms) and always open (🫀 99.999% uptime).
I'm sold. How much is it?
tl;dr — if you're validating one email at a time, free forever. If you need to validate whole lists or plan to integrate, it's super cheap.
Single validation
If you just want to check a few email addresses from time to time or you're just testing out the service, it is completely free as long as you validate one email at a time.
Start for freeLists or API
For advanced use cases where you need to check multiple emails at once, or you're integrating our validator with your service.
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