Sub-second response times
Real-time email input validation
User registrations, checkouts, and online forms are where you can catch bad emails before they pollute your database. Keep your CRM clean and protect your sender reputation effortlessly.
Email Verification API
Email List Verify’s API keeps your email list clean. Notify website users about an invalid email address in real-time when they are filling out a form.
Copy & Paste
3 min.Just copy a few lines of code to your website and you are ready to go!
Get started
Developer API
30 min.Implement our robust REST API with SDKs in the language of your choice.
Read the Docs
Why your CRM needs real-time email validation
Most CRMs slowly accumulate bad data. Typos, disposable emails, and invalid addresses get stored during signups, showing up later as hard bounces that damage your deliverability.
Real-time email validation solves this by checking addresses instantly at the point of entry.
What the API detects and blocks
Adding validation to your workflows helps you automatically filter out:
- Syntax errors and typos: Catch common domain misspellings immediately.
- Disposable emails: Block temporary or throwaway inboxes.
- Role-based accounts: Flag addresses like sales@ or info@ that lower engagement.
- Spam traps & catch-alls: Avoid risky addresses that trigger provider penalties.
Integration workflows
In most setups, integration looks like this:
- Call the EmailListVerify API when an email is entered.
- Receive the structured JSON verification result in milliseconds.
- Allow, flag, or block the email before saving it to your system.
What the API returns
We don't just tell you if an email is valid; we give you the metadata to make smart routing decisions in your code.
{
"email": "[email protected]",
"status": "valid",
"score": 100,
"disposable": false,
"role": false,
"free": false,
"accept_all": false,
"did_you_mean": null,
"mx_record": "mx.example.com"
}
A clean, predictable JSON response for every request.
How do I integrate the API with my code?
Integration is simple. Send an HTTP GET request to our endpoint and use the returned JSON result.
We provide ready-to-use examples to help you get started quickly. Choose your preferred language below.
curl -X GET 'https://apps.emaillistverify.com/api/verifyEmail?secret=YOUR_API_KEY&[email protected]'
$email = "[email protected]";
$key = "YOUR_API_KEY";
$url = "https://apps.emaillistverify.com/api/verifyEmail?secret=".$key."&email=".$email;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true );
$response = curl_exec($ch);
echo $response;
curl_close($ch);
require 'email_list_verify'
api_key = 'YOUR_API_KEY'
client = EmailListVerify.new(api_key)
client.one_by_one('[email protected]')
from emailverify import EmailListVerifyOne
E = EmailListVerifyOne('YOUR_API_KEY', '[email protected]')
result = E.control()
print result
static async Task VerifyOne() {
var apiUrl = "https://apps.emaillistverify.com/api/verifyEmail";
var apiKey = "YOUR_API_KEY";
var email = "[email protected]";
var requestUrl = $"{apiUrl}?secret={apiKey}&email={email}";
var request = WebRequest.Create(requestUrl);
var response = await request.GetResponseAsync();
string emailStatus;
using (var responseStream = response.GetResponseStream()) {
var responseReader = new StreamReader(responseStream);
emailStatus = responseReader.ReadToEnd();
}
Console.WriteLine(emailStatus);
}
Frequently asked questions
Who needs email validation?
Email validation is useful for anyone who sends emails at scale or collects contacts online.
Common users include:
- Marketers running campaigns
- Sales teams building outreach lists
- SaaS companies collecting signups
- Agencies managing multiple client databases
Validation helps prevent invalid or risky addresses from entering your mailing lists.
Is there a free tier for testing?
Yes. You can create a free account and get an API key instantly to test the integration in your development environment and verify your first batch of emails at no cost.
