Email List Verify’s API keeps your email list clean. Notify website user about an invalid email address when they are filling out a form.
Just copy a few lines of code to your website and you are ready to go!
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Implement our email verification API in a way that suits your needs.
Read the Docs
User registrations, newsletters, online polls or any other forms on your website – these are the places where you can catch bad emails before they get to your database. Keep your email list clean with no additional effort.
Most CRMs slowly accumulate bad email data. Typos, disposable emails, and invalid addresses get stored during signups or imports, and the problems only show up later as bounced emails or deliverability issues.
Real-time email validation solves this by checking email addresses before they are saved in your CRM. Instead of cleaning lists after the fact, validation happens at the point of entry.
Adding validation during signup or data entry helps block:
This keeps CRM data cleaner and decreases the need for large cleanup jobs later.
Using the EmailListVerify API, your application sends an email address for verification as soon as a user submits it. The API performs checks such as:
Your system then decides whether to accept, flag, or reject the address based on the response.
In most setups, integration looks like this:
This can be implemented in signup forms, backend workflows, or import pipelines depending on how your data enters the system. For endpoints, parameters, and implementation examples, see the API documentation.
The EmailListVerify API allows you to verify email addresses automatically by sending a validation request and receiving a structured result in real time.
Instead of uploading lists manually, your application can check email addresses as they are collected or processed.
The validation process follows a simple request–response flow:
The process typically runs instantly and can be triggered during signup, form submission, or data imports.
The API returns a structured response that indicates the verification status of the email address. Developers can use this result to:
Integration is simple. Send an email address to the EmailListVerify API and use the returned result to decide whether the address should be accepted, flagged, or rejected.
We provide ready-to-use examples and libraries to help you get started quickly. Just choose your preferred language and follow the example to connect the API to your application.
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);
}
Email validation is useful for anyone who sends emails at scale or collects contacts online.
Common users include:
Validation helps prevent invalid or risky addresses from entering your mailing lists.
