Disposable Email Checker

Overview

Send a complete email address, or just a domain, to check it against a disposable email blocklist of over 100,000 throwaway and temp email domains, updated daily. The check tests both exact matches and parent domains, and separately flags privacy relay addresses such as Apple Hide My Email, DuckDuckGo and Firefox Relay, which forward to a real inbox. Paid plans also read the domain's MX records to name the relay service behind a custom domain and to catch new throwaway domains that receive mail through a known disposable service.

Live Test Disposable Email Checker API →

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

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curl "https://api.apiverve.com/v1/emaildisposablechecker?email=support%40myspace.com&domain=mailinator.com" \
  -H "x-api-key: your_api_key_here"

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const res = await fetch('https://api.apiverve.com/v1/emaildisposablechecker?email=support%40myspace.com&domain=mailinator.com', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

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import requests

res = requests.get(
    "https://api.apiverve.com/v1/emaildisposablechecker?email=support%40myspace.com&domain=mailinator.com",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

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package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/emaildisposablechecker?email=support%40myspace.com&domain=mailinator.com", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

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{
  "status": "ok",
  "error": null,
  "data": {
    "isDisposable": false,
    "email": "support@myspace.com",
    "domain": "myspace.com",
    "isRelay": false,
    "relayService": null,
    "isDisposableMx": false
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Use cases

User Registration Screening

To stop fake signups, SaaS apps check user email addresses at registration and reject submissions matching temporary domain lists.

Mailing List Cleaning

Filter out temporary inboxes from marketing contact databases before scheduling newsletter campaigns to protect sender reputation and delivery rates.

Gated Content Verification

When visitors request whitepapers or trial access, verify their email domain immediately to require a genuine corporate or personal inbox.

Promo Abuse Prevention

E-commerce stores evaluate customer emails during checkout to prevent shoppers from repeatedly claiming first-order discounts with burner accounts.

Other ways to use Disposable Email Checker

Set up Disposable Email Checker on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

More in Data Validation: