free email provider detection api
Free email provider detection API
Identify consumer mailbox providers so you can score signups and segment users more accurately.
Free mailbox providers are normal, but they often deserve a different scoring rule.
Knowing the provider helps you route support, onboarding, and upsell logic.
It can also help explain deliverability differences across domains.
{
"success": true,
"email": "[email protected]",
"result": "valid",
"syntax_ok": true,
"mx_found": true,
"disposable": false
}Why detect provider type?
It helps you tailor onboarding and score leads more intelligently.
Is free email bad?
No. It is simply a useful signal when combined with other checks.
Why provider classification helps
Knowing whether an address belongs to a consumer provider or a business domain gives you a useful segmentation signal. That can influence onboarding, support workflows, and lead scoring without requiring the user to do anything extra.
How to use it responsibly
Free-provider detection should not be a blanket rejection rule. The signal is most useful as part of a broader score so you can separate low-risk consumer email from suspicious disposable behavior.
FAQ
How do I use this page?
Use it as a quickstart reference and link it from your docs, onboarding flow, or marketing page.
What should I do next?
Create an account, try the demo, and move the integration into your backend with a real API key.
Does free provider mean low quality?
No. It only tells you about the mailbox type.
Should I segment by provider?
Yes, if your product uses different onboarding or retention paths.