Single Email Verification

Verify a single email address in real time. The response includes timing details, and latency depends on remote mail servers and network conditions.

View Markdown OpenAPI JSON

Endpoint

POST https://verimails.com/api/verify/single

Request

Headers

Header	Required	Value
`Authorization`	Yes	`Bearer YOUR_API_KEY`
`Content-Type`	Yes	`application/json`

Body

Field	Type	Required	Description
`email`	string	Yes	The email address to verify

json

{
  "email": "user@example.com"
}

Response

Response fields

Field	Type	Description
`email`	string	The email address that was verified
`status`	string	Verification result: `valid`, `invalid`, `risky`, `unknown`, or `disposable`
`safe_to_send`	boolean	Whether VeriMails recommends sending to this address. True only when `status` is `valid`.
`confidence_score`	number	Overall confidence for the verification result.
`domain`	string	The domain extracted from the email address.
`is_catch_all`	boolean	Whether the domain accepts mail broadly, making the individual mailbox harder to confirm.
`is_disposable`	boolean	Whether the address uses a disposable or temporary email provider.
`is_role_based`	boolean	Whether the address is a role inbox such as info@ or support@.
`is_free`	boolean	Whether the domain is a free email provider.
`verification_time_ms`	integer	Processing time in milliseconds.

Example response — valid email

json

{
  "email": "john@company.com",
  "status": "valid",
  "safe_to_send": true,
  "confidence_score": 0.95,
  "reason": "Verification completed",
  "domain": "company.com",
  "is_disposable": false,
  "is_role_based": false,
  "is_free": false,
  "is_catch_all": false,
  "mx_records": ["mx1.company.com"],
  "smtp_response": null,
  "verification_time_ms": 642,
  "api_version": "1.0"
}

Example response — catch-all domain

json

{
  "email": "sarah@enterprise.io",
  "status": "catchall",
  "safe_to_send": false,
  "confidence_score": 0.52,
  "reason": "Catch-all domain detected",
  "domain": "enterprise.io",
  "is_disposable": false,
  "is_role_based": false,
  "is_free": false,
  "is_catch_all": true,
  "mx_records": ["mx1.enterprise.io"],
  "smtp_response": null,
  "verification_time_ms": 918,
  "api_version": "1.0"
}

Code examples

bash

curl -X POST https://verimails.com/api/verify/single \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email": "user@example.com"}'

python

import requests

def verify_email(email, api_key):
    response = requests.post(
        "https://verimails.com/api/verify/single",
        headers={
            "Authorization": f"Bearer {api_key}",
            "Content-Type": "application/json"
        },
        json={"email": email}
    )
    response.raise_for_status()
    return response.json()

result = verify_email("user@example.com", "YOUR_API_KEY")
if result["safe_to_send"]:
    print("Safe to contact!")

javascript

async function verifyEmail(email, apiKey) {
  const res = await fetch("https://verimails.com/api/verify/single", {
    method: "POST",
    headers: {
      "Authorization": `Bearer ${apiKey}`,
      "Content-Type": "application/json"
    },
    body: JSON.stringify({ email })
  });

  if (!res.ok) throw new Error(`API error: ${res.status}`);
  return res.json();
}

const result = await verifyEmail("user@example.com", "YOUR_API_KEY");
console.log(result.status);       // "valid"
console.log(result.safe_to_send); // true

php

function verifyEmail($email, $apiKey) {
    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL => "https://verimails.com/api/verify/single",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_HTTPHEADER => [
            "Authorization: Bearer {$apiKey}",
            "Content-Type: application/json"
        ],
        CURLOPT_POSTFIELDS => json_encode(["email" => $email])
    ]);

    $result = json_decode(curl_exec($ch), true);
    curl_close($ch);
    return $result;
}

$result = verifyEmail("user@example.com", "YOUR_API_KEY");
if ($result["safe_to_send"]) {
    echo "Safe to contact!";
}

Status codes

HTTP Status	Meaning
`200`	Success — result returned
`401`	Unauthorized — missing or invalid API key
`422`	Validation error — invalid email format or missing field
`429`	Rate limit exceeded — slow down requests
`500`	Server error — try again shortly