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SPF Validator API Reference

API Overview

SPF Validator checks the Sender Policy Framework (SPF) DNS record for a domain to verify if it’s valid and optionally whether a given IP address is authorized to send emails for that domain.

To use this API, you need an API key. You can get one by creating a free account and visiting your dashboard.

View API in Directory

Validate SPF Record & Test IP Authorization

1 Token 

	
#GET Request
https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1

x-api-key (required)

This is a required header on every request. Your API Key is found from within your dashboard

accept

This is an optional header. Set the value to application/json, application/xml, or application/yaml


domainstring(required)

The domain to validate the SPF record for


Sample Request
	
import requests

url = "https://api.apiverve.com/v1/spfvalidator"

querystring = {'domain': 'myspace.com', 'ip': '192.0.2.1'}

headers = {
	"x-api-key": "YOUR_API_KEY"
}

response = requests.get(url, headers=headers, params=querystring)

print(response.json())
	
							
	
using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
	Method = HttpMethod.Get,
	RequestUri = new Uri("https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1"),
	Headers =
	{
		{ "x-api-key", "YOUR_API_KEY" }
	},
};
using (var response = await client.SendAsync(request))
{
	response.EnsureSuccessStatusCode();
	var body = await response.Content.ReadAsStringAsync();
	Console.WriteLine(body);
}
	
							
	
const data = null;

const xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener('readystatechange', function () {
	if (this.readyState === this.DONE) {
		console.log(this.responseText);
	}
});

xhr.open('GET', 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1');
xhr.setRequestHeader('x-api-key', 'YOUR_API_KEY');
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.setRequestHeader('Accept', 'application/json');

xhr.send(data);
	
							
	
const request = require('request');

const options = {
  method: 'GET',
  url: 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1',
  headers: {
    'x-api-key': 'YOUR_API_KEY'
  }
};

request(options, function (error, response, body) {
	if (error) throw new Error(error);

	console.log(body);
});
	
							
	
HttpRequest request = HttpRequest.newBuilder()
		.uri(URI.create("https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1"))
		.header("x-api-key", "YOUR_API_KEY")
		.method("GET", HttpRequest.BodyPublishers.noBody())
		.build();
HttpResponse response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());
	
							
	
import Foundation

let headers = [
	"x-api-key": "YOUR_API_KEY"
]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1")! as URL,
				cachePolicy: .useProtocolCachePolicy,
                timeoutInterval: 10.0)

request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
	if (error != nil) {
		print(error as Any)
	} else {
		let httpResponse = response as? HTTPURLResponse
		print(httpResponse)
	}
})

dataTask.resume()
	
							
	
curl --request GET \
	--url 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1' \
	--header 'x-api-key: YOUR_API_KEY'

Sample Response
	
{
  "status": "ok",
  "error": null,
  "data": {
    "authorized_ips": {
      "ipv4": [
        "63.208.226.34",
        "204.16.32.0/22",
        "67.134.143.0/24",
        "216.205.243.0/24",
        "34.85.156.5/32",
        "35.245.108.108/32",
        "34.86.129.193/32",
        "34.86.134.94/32",
        "34.85.222.234/32",
        "34.86.176.234/32",
        "34.86.125.212/32",
        "34.85.224.60/32",
        "34.86.160.49/32",
        "35.245.64.166/32",
        "35.188.226.11/32",
        "34.86.208.228/32",
        "34.85.216.144/32",
        "35.221.22.153/32",
        "34.86.137.108/32",
        "34.86.51.35/32",
        "34.150.221.40/32",
        "34.85.216.70/32",
        "34.86.37.191/32",
        "34.85.214.215/32",
        "35.236.234.82/32",
        "34.86.161.241/32",
        "216.32.181.16",
        "216.178.32.0/20",
        "168.235.224.0/24",
        "195.130.217.0/24",
        "91.220.42.0/24",
        "146.101.78.0/24",
        "207.82.80.0/24",
        "213.167.81.0/25",
        "193.7.207.0/25",
        "213.167.75.0/25",
        "185.58.85.0/24",
        "185.58.86.0/24",
        "193.7.206.0/25",
        "147.28.36.0/24",
        "207.211.31.0/25",
        "205.139.110.0/24",
        "216.205.24.0/24",
        "170.10.129.0/24",
        "63.128.21.0/24",
        "170.10.133.0/24",
        "185.58.84.93/32",
        "207.211.41.113/32",
        "207.211.30.64/26",
        "207.211.30.128/25",
        "216.145.221.0/24",
        "170.10.128.0/24",
        "170.10.132.56/29",
        "170.10.132.64/29",
        "41.74.192.0/22",
        "41.74.200.0/23",
        "41.74.196.0/22",
        "41.74.204.0/23",
        "41.74.206.0/24",
        "51.163.158.0/24",
        "194.104.109.0/24",
        "194.104.111.0/24",
        "194.104.110.21/32",
        "194.104.110.240/28",
        "62.140.10.21/32",
        "62.140.7.0/24",
        "194.104.108.240/29",
        "194.104.108.21/32",
        "103.13.69.0/24",
        "124.47.150.0/24",
        "124.47.189.0/24",
        "103.96.23.0/24",
        "103.96.21.0/24",
        "180.189.28.0/24",
        "216.145.217.0/24",
        "103.96.22.96/28",
        "103.96.22.22/32",
        "103.96.20.22/32",
        "103.96.20.96/28",
        "170.10.145.0/24",
        "170.10.147.0/24",
        "170.10.144.126/32",
        "170.10.146.126/32",
        "170.10.144.240/29",
        "170.10.146.240/29",
        "216.145.216.0/24"
      ]
    },
    "dns_lookups_num": 8,
    "domains_extracted": [
      "myspace.com",
      "_netblocks.mimecast.com",
      "eu._netblocks.mimecast.com",
      "us._netblocks.mimecast.com",
      "za._netblocks.mimecast.com",
      "de._netblocks.mimecast.com",
      "au._netblocks.mimecast.com",
      "ca._netblocks.mimecast.com"
    ],
    "elapsed_ms": 1118,
    "has_issues": false,
    "has_spf_record": true,
    "host": "myspace.com",
    "ip_pass": false,
    "macros_found": false,
    "spf_record": "v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all",
    "spf_records_list": [
      {
        "authorized_ips": {
          "ipv4": [
            "63.208.226.34",
            "204.16.32.0/22",
            "67.134.143.0/24",
            "216.205.243.0/24",
            "34.85.156.5/32",
            "35.245.108.108/32",
            "34.86.129.193/32",
            "34.86.134.94/32",
            "34.85.222.234/32",
            "34.86.176.234/32",
            "34.86.125.212/32",
            "34.85.224.60/32",
            "34.86.160.49/32",
            "35.245.64.166/32",
            "35.188.226.11/32",
            "34.86.208.228/32",
            "34.85.216.144/32",
            "35.221.22.153/32",
            "34.86.137.108/32",
            "34.86.51.35/32",
            "34.150.221.40/32",
            "34.85.216.70/32",
            "34.86.37.191/32",
            "34.85.214.215/32",
            "35.236.234.82/32",
            "34.86.161.241/32",
            "216.32.181.16",
            "216.178.32.0/20",
            "168.235.224.0/24"
          ]
        },
        "chars_num": 637,
        "domains": [
          "_netblocks.mimecast.com"
        ],
        "origin": "myspace.com",
        "record": "v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all",
        "use_macro": false
      },
      {
        "chars_num": 221,
        "domains": [
          "eu._netblocks.mimecast.com",
          "us._netblocks.mimecast.com",
          "za._netblocks.mimecast.com",
          "de._netblocks.mimecast.com",
          "au._netblocks.mimecast.com",
          "ca._netblocks.mimecast.com"
        ],
        "origin": "_netblocks.mimecast.com",
        "record": "v=spf1 include:eu._netblocks.mimecast.com include:us._netblocks.mimecast.com include:za._netblocks.mimecast.com include:de._netblocks.mimecast.com include:au._netblocks.mimecast.com include:ca._netblocks.mimecast.com ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "195.130.217.0/24",
            "91.220.42.0/24",
            "146.101.78.0/24",
            "207.82.80.0/24",
            "213.167.81.0/25",
            "193.7.207.0/25",
            "213.167.75.0/25",
            "185.58.85.0/24",
            "185.58.86.0/24",
            "193.7.206.0/25",
            "147.28.36.0/24"
          ]
        },
        "chars_num": 225,
        "origin": "eu._netblocks.mimecast.com",
        "record": "v=spf1 ip4:195.130.217.0/24 ip4:91.220.42.0/24 ip4:146.101.78.0/24 ip4:207.82.80.0/24 ip4:213.167.81.0/25 ip4:193.7.207.0/25 ip4:213.167.75.0/25 ip4:185.58.85.0/24 ip4:185.58.86.0/24 ip4:193.7.206.0/25 ip4:147.28.36.0/24 ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "207.211.31.0/25",
            "205.139.110.0/24",
            "216.205.24.0/24",
            "170.10.129.0/24",
            "63.128.21.0/24",
            "170.10.133.0/24",
            "185.58.84.93/32",
            "207.211.41.113/32",
            "207.211.30.64/26",
            "207.211.30.128/25",
            "216.145.221.0/24",
            "170.10.128.0/24",
            "170.10.132.56/29",
            "170.10.132.64/29"
          ]
        },
        "chars_num": 299,
        "origin": "us._netblocks.mimecast.com",
        "record": "v=spf1 ip4:207.211.31.0/25 ip4:205.139.110.0/24 ip4:216.205.24.0/24 ip4:170.10.129.0/24 ip4:63.128.21.0/24 ip4:170.10.133.0/24 ip4:185.58.84.93/32 ip4:207.211.41.113/32 ip4:207.211.30.64/26 ip4:207.211.30.128/25 ip4:216.145.221.0/24 ip4:170.10.128.0/24 ip4:170.10.132.56/29 ip4:170.10.132.64/29 ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "41.74.192.0/22",
            "41.74.200.0/23",
            "41.74.196.0/22",
            "41.74.204.0/23",
            "41.74.206.0/24"
          ]
        },
        "chars_num": 106,
        "origin": "za._netblocks.mimecast.com",
        "record": "v=spf1 ip4:41.74.192.0/22 ip4:41.74.200.0/23 ip4:41.74.196.0/22 ip4:41.74.204.0/23 ip4:41.74.206.0/24 ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "51.163.158.0/24",
            "194.104.109.0/24",
            "194.104.111.0/24",
            "194.104.110.21/32",
            "194.104.110.240/28",
            "62.140.10.21/32",
            "62.140.7.0/24",
            "194.104.108.240/29",
            "194.104.108.21/32"
          ]
        },
        "chars_num": 201,
        "origin": "de._netblocks.mimecast.com",
        "record": "v=spf1 ip4:51.163.158.0/24 ip4:194.104.109.0/24 ip4:194.104.111.0/24 ip4:194.104.110.21/32 ip4:194.104.110.240/28 ip4:62.140.10.21/32 ip4:62.140.7.0/24 ip4:194.104.108.240/29 ip4:194.104.108.21/32 ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "103.13.69.0/24",
            "124.47.150.0/24",
            "124.47.189.0/24",
            "103.96.23.0/24",
            "103.96.21.0/24",
            "180.189.28.0/24",
            "216.145.217.0/24",
            "103.96.22.96/28",
            "103.96.22.22/32",
            "103.96.20.22/32",
            "103.96.20.96/28"
          ]
        },
        "chars_num": 229,
        "origin": "au._netblocks.mimecast.com",
        "record": "v=spf1 ip4:103.13.69.0/24 ip4:124.47.150.0/24 ip4:124.47.189.0/24 ip4:103.96.23.0/24 ip4:103.96.21.0/24 ip4:180.189.28.0/24 ip4:216.145.217.0/24 ip4:103.96.22.96/28 ip4:103.96.22.22/32 ip4:103.96.20.22/32 ip4:103.96.20.96/28 ~all",
        "use_macro": false
      },
      {
        "authorized_ips": {
          "ipv4": [
            "170.10.145.0/24",
            "170.10.147.0/24",
            "170.10.144.126/32",
            "170.10.146.126/32",
            "170.10.144.240/29",
            "170.10.146.240/29",
            "216.145.216.0/24"
          ]
        },
        "chars_num": 160,
        "origin": "ca._netblocks.mimecast.com",
        "record": "v=spf1 ip4:170.10.145.0/24 ip4:170.10.147.0/24 ip4:170.10.144.126/32 ip4:170.10.146.126/32 ip4:170.10.144.240/29 ip4:170.10.146.240/29 ip4:216.145.216.0/24 ~all",
        "use_macro": false
      }
    ],
    "spf_valid": true
  },
  "code": 200
}
	
							
	
<Root>
  <status>ok</status>
  <error />
  <data>
    <authorized_ips>
      <ipv4>63.208.226.34</ipv4>
      <ipv4>204.16.32.0/22</ipv4>
      <ipv4>67.134.143.0/24</ipv4>
      <ipv4>216.205.243.0/24</ipv4>
      <ipv4>34.85.156.5/32</ipv4>
      <ipv4>35.245.108.108/32</ipv4>
      <ipv4>34.86.129.193/32</ipv4>
      <ipv4>34.86.134.94/32</ipv4>
      <ipv4>34.85.222.234/32</ipv4>
      <ipv4>34.86.176.234/32</ipv4>
      <ipv4>34.86.125.212/32</ipv4>
      <ipv4>34.85.224.60/32</ipv4>
      <ipv4>34.86.160.49/32</ipv4>
      <ipv4>35.245.64.166/32</ipv4>
      <ipv4>35.188.226.11/32</ipv4>
      <ipv4>34.86.208.228/32</ipv4>
      <ipv4>34.85.216.144/32</ipv4>
      <ipv4>35.221.22.153/32</ipv4>
      <ipv4>34.86.137.108/32</ipv4>
      <ipv4>34.86.51.35/32</ipv4>
      <ipv4>34.150.221.40/32</ipv4>
      <ipv4>34.85.216.70/32</ipv4>
      <ipv4>34.86.37.191/32</ipv4>
      <ipv4>34.85.214.215/32</ipv4>
      <ipv4>35.236.234.82/32</ipv4>
      <ipv4>34.86.161.241/32</ipv4>
      <ipv4>216.32.181.16</ipv4>
      <ipv4>216.178.32.0/20</ipv4>
      <ipv4>168.235.224.0/24</ipv4>
      <ipv4>195.130.217.0/24</ipv4>
      <ipv4>91.220.42.0/24</ipv4>
      <ipv4>146.101.78.0/24</ipv4>
      <ipv4>207.82.80.0/24</ipv4>
      <ipv4>213.167.81.0/25</ipv4>
      <ipv4>193.7.207.0/25</ipv4>
      <ipv4>213.167.75.0/25</ipv4>
      <ipv4>185.58.85.0/24</ipv4>
      <ipv4>185.58.86.0/24</ipv4>
      <ipv4>193.7.206.0/25</ipv4>
      <ipv4>147.28.36.0/24</ipv4>
      <ipv4>207.211.31.0/25</ipv4>
      <ipv4>205.139.110.0/24</ipv4>
      <ipv4>216.205.24.0/24</ipv4>
      <ipv4>170.10.129.0/24</ipv4>
      <ipv4>63.128.21.0/24</ipv4>
      <ipv4>170.10.133.0/24</ipv4>
      <ipv4>185.58.84.93/32</ipv4>
      <ipv4>207.211.41.113/32</ipv4>
      <ipv4>207.211.30.64/26</ipv4>
      <ipv4>207.211.30.128/25</ipv4>
      <ipv4>216.145.221.0/24</ipv4>
      <ipv4>170.10.128.0/24</ipv4>
      <ipv4>170.10.132.56/29</ipv4>
      <ipv4>170.10.132.64/29</ipv4>
      <ipv4>41.74.192.0/22</ipv4>
      <ipv4>41.74.200.0/23</ipv4>
      <ipv4>41.74.196.0/22</ipv4>
      <ipv4>41.74.204.0/23</ipv4>
      <ipv4>41.74.206.0/24</ipv4>
      <ipv4>51.163.158.0/24</ipv4>
      <ipv4>194.104.109.0/24</ipv4>
      <ipv4>194.104.111.0/24</ipv4>
      <ipv4>194.104.110.21/32</ipv4>
      <ipv4>194.104.110.240/28</ipv4>
      <ipv4>62.140.10.21/32</ipv4>
      <ipv4>62.140.7.0/24</ipv4>
      <ipv4>194.104.108.240/29</ipv4>
      <ipv4>194.104.108.21/32</ipv4>
      <ipv4>103.13.69.0/24</ipv4>
      <ipv4>124.47.150.0/24</ipv4>
      <ipv4>124.47.189.0/24</ipv4>
      <ipv4>103.96.23.0/24</ipv4>
      <ipv4>103.96.21.0/24</ipv4>
      <ipv4>180.189.28.0/24</ipv4>
      <ipv4>216.145.217.0/24</ipv4>
      <ipv4>103.96.22.96/28</ipv4>
      <ipv4>103.96.22.22/32</ipv4>
      <ipv4>103.96.20.22/32</ipv4>
      <ipv4>103.96.20.96/28</ipv4>
      <ipv4>170.10.145.0/24</ipv4>
      <ipv4>170.10.147.0/24</ipv4>
      <ipv4>170.10.144.126/32</ipv4>
      <ipv4>170.10.146.126/32</ipv4>
      <ipv4>170.10.144.240/29</ipv4>
      <ipv4>170.10.146.240/29</ipv4>
      <ipv4>216.145.216.0/24</ipv4>
    </authorized_ips>
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</Root>
	
							
	
status: ok
error: 
data:
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    chars_num: 106
    origin: za._netblocks.mimecast.com
    record: v=spf1 ip4:41.74.192.0/22 ip4:41.74.200.0/23 ip4:41.74.196.0/22 ip4:41.74.204.0/23 ip4:41.74.206.0/24 ~all
    use_macro: false
  - authorized_ips:
      ipv4:
      - 51.163.158.0/24
      - 194.104.109.0/24
      - 194.104.111.0/24
      - 194.104.110.21/32
      - 194.104.110.240/28
      - 62.140.10.21/32
      - 62.140.7.0/24
      - 194.104.108.240/29
      - 194.104.108.21/32
    chars_num: 201
    origin: de._netblocks.mimecast.com
    record: v=spf1 ip4:51.163.158.0/24 ip4:194.104.109.0/24 ip4:194.104.111.0/24 ip4:194.104.110.21/32 ip4:194.104.110.240/28 ip4:62.140.10.21/32 ip4:62.140.7.0/24 ip4:194.104.108.240/29 ip4:194.104.108.21/32 ~all
    use_macro: false
  - authorized_ips:
      ipv4:
      - 103.13.69.0/24
      - 124.47.150.0/24
      - 124.47.189.0/24
      - 103.96.23.0/24
      - 103.96.21.0/24
      - 180.189.28.0/24
      - 216.145.217.0/24
      - 103.96.22.96/28
      - 103.96.22.22/32
      - 103.96.20.22/32
      - 103.96.20.96/28
    chars_num: 229
    origin: au._netblocks.mimecast.com
    record: v=spf1 ip4:103.13.69.0/24 ip4:124.47.150.0/24 ip4:124.47.189.0/24 ip4:103.96.23.0/24 ip4:103.96.21.0/24 ip4:180.189.28.0/24 ip4:216.145.217.0/24 ip4:103.96.22.96/28 ip4:103.96.22.22/32 ip4:103.96.20.22/32 ip4:103.96.20.96/28 ~all
    use_macro: false
  - authorized_ips:
      ipv4:
      - 170.10.145.0/24
      - 170.10.147.0/24
      - 170.10.144.126/32
      - 170.10.146.126/32
      - 170.10.144.240/29
      - 170.10.146.240/29
      - 216.145.216.0/24
    chars_num: 160
    origin: ca._netblocks.mimecast.com
    record: v=spf1 ip4:170.10.145.0/24 ip4:170.10.147.0/24 ip4:170.10.144.126/32 ip4:170.10.146.126/32 ip4:170.10.144.240/29 ip4:170.10.146.240/29 ip4:216.145.216.0/24 ~all
    use_macro: false
  spf_valid: true
code: 200
	
							
	
{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "properties": {
    "status": {
      "type": "string"
    },
    "error": {},
    "data": {
      "$ref": "#/definitions/Data"
    },
    "code": {
      "type": "integer"
    }
  },
  "definitions": {
    "Data": {
      "type": "object",
      "properties": {
        "authorized_ips": {
          "$ref": "#/definitions/Authorized_ips"
        },
        "dns_lookups_num": {
          "type": "integer"
        },
        "domains_extracted": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/Domains_extracted"
          }
        },
        "elapsed_ms": {
          "type": "integer"
        },
        "has_issues": {
          "type": "boolean"
        },
        "has_spf_record": {
          "type": "boolean"
        },
        "host": {
          "type": "string"
        },
        "ip_pass": {
          "type": "boolean"
        },
        "macros_found": {
          "type": "boolean"
        },
        "spf_record": {
          "type": "string"
        },
        "spf_records_list": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/Spf_records_list"
          }
        },
        "spf_valid": {
          "type": "boolean"
        }
      }
    },
    "Authorized_ips": {
      "type": "object",
      "properties": {
        "ipv4": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/Anonymous13"
          }
        }
      }
    },
    "Ipv4": {
      "type": "string"
    },
    "Domains_extracted": {
      "type": "string"
    },
    "Anonymous5": {
      "type": "string"
    },
    "Domain": {
      "type": "string"
    },
    "Anonymous7": {
      "type": "string"
    },
    "Anonymous8": {
      "type": "string"
    },
    "Anonymous9": {
      "type": "string"
    },
    "Anonymous10": {
      "type": "string"
    },
    "Anonymous11": {
      "type": "string"
    },
    "Anonymous12": {
      "type": "string"
    },
    "Anonymous13": {
      "type": "string"
    },
    "Spf_records_list": {
      "type": "object",
      "properties": {
        "authorized_ips": {
          "$ref": "#/definitions/Authorized_ips"
        },
        "chars_num": {
          "type": "integer"
        },
        "domains": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/Domain"
          }
        },
        "origin": {
          "type": "string"
        },
        "record": {
          "type": "string"
        },
        "use_macro": {
          "type": "boolean"
        }
      }
    }
  }
}
Live Test API in Playground

Test IP Authorization

1 Token 

	
#GET Request
https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1

x-api-key (required)

This is a required header on every request. Your API Key is found from within your dashboard

accept

This is an optional header. Set the value to application/json, application/xml, or application/yaml


domainstring(required)

The domain to validate the SPF record for

ipstring(required)

IP address to test against the domain’s SPF policy


Sample Request
	
import requests

url = "https://api.apiverve.com/v1/spfvalidator"

querystring = {'domain': 'myspace.com', 'ip': '192.0.2.1'}

headers = {
	"x-api-key": "YOUR_API_KEY"
}

response = requests.get(url, headers=headers, params=querystring)

print(response.json())
	
							
	
using System.Net.Http.Headers;
var client = new HttpClient();
var request = new HttpRequestMessage
{
	Method = HttpMethod.Get,
	RequestUri = new Uri("https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1"),
	Headers =
	{
		{ "x-api-key", "YOUR_API_KEY" }
	},
};
using (var response = await client.SendAsync(request))
{
	response.EnsureSuccessStatusCode();
	var body = await response.Content.ReadAsStringAsync();
	Console.WriteLine(body);
}
	
							
	
const data = null;

const xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener('readystatechange', function () {
	if (this.readyState === this.DONE) {
		console.log(this.responseText);
	}
});

xhr.open('GET', 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1');
xhr.setRequestHeader('x-api-key', 'YOUR_API_KEY');
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.setRequestHeader('Accept', 'application/json');

xhr.send(data);
	
							
	
const request = require('request');

const options = {
  method: 'GET',
  url: 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1',
  headers: {
    'x-api-key': 'YOUR_API_KEY'
  }
};

request(options, function (error, response, body) {
	if (error) throw new Error(error);

	console.log(body);
});
	
							
	
HttpRequest request = HttpRequest.newBuilder()
		.uri(URI.create("https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1"))
		.header("x-api-key", "YOUR_API_KEY")
		.method("GET", HttpRequest.BodyPublishers.noBody())
		.build();
HttpResponse response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());
	
							
	
import Foundation

let headers = [
	"x-api-key": "YOUR_API_KEY"
]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1")! as URL,
				cachePolicy: .useProtocolCachePolicy,
                timeoutInterval: 10.0)

request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
	if (error != nil) {
		print(error as Any)
	} else {
		let httpResponse = response as? HTTPURLResponse
		print(httpResponse)
	}
})

dataTask.resume()
	
							
	
curl --request GET \
	--url 'https://api.apiverve.com/v1/spfvalidator?domain=myspace.com&ip=192.0.2.1' \
	--header 'x-api-key: YOUR_API_KEY'
Live Test API in Playground

OpenAPI Schema

                                    
openapi: 3.0.4
info:
  title: APIVerve
  description: Unleash the potential of your applications with a single API Key and access to various APIs
  termsOfService: https://apiverve.com/terms/
  contact:
    name: APIVerve Support
    email: [email protected]
    url: https://apiverve.com/contact
  version: 1.0.9
externalDocs:
  description: Learn more about APIVerve
  url: https://docs.apiverve.com?utm_source=openapi
servers:
- url: https://api.apiverve.com/
paths:
  /v1/spfvalidator:
    get:
      summary: Validate SPF Record & Test IP Authorization
      description: SPF Validator checks the Sender Policy Framework (SPF) DNS record for a domain to verify if it’s valid and optionally whether a given IP address is authorized to send emails for that domain.
      operationId: spfvalidator
      parameters:
      - name: domain
        in: query
        schema:
          type: string
        required: true
        description: The domain to validate the SPF record for
        example: myspace.com
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: string
                    description: status
                  error:
                    type: string
                    description: error
                  data:
                    type: string
                    description: data
                  code:
                    type: number
                    description: code
              example:
                status: ok
                error: 
                data:
                  authorized_ips:
                    ipv4:
                    - 63.208.226.34
                    - 204.16.32.0/22
                    - 67.134.143.0/24
                    - 216.205.243.0/24
                    - 34.85.156.5/32
                    - 35.245.108.108/32
                    - 34.86.129.193/32
                    - 34.86.134.94/32
                    - 34.85.222.234/32
                    - 34.86.176.234/32
                    - 34.86.125.212/32
                    - 34.85.224.60/32
                    - 34.86.160.49/32
                    - 35.245.64.166/32
                    - 35.188.226.11/32
                    - 34.86.208.228/32
                    - 34.85.216.144/32
                    - 35.221.22.153/32
                    - 34.86.137.108/32
                    - 34.86.51.35/32
                    - 34.150.221.40/32
                    - 34.85.216.70/32
                    - 34.86.37.191/32
                    - 34.85.214.215/32
                    - 35.236.234.82/32
                    - 34.86.161.241/32
                    - 216.32.181.16
                    - 216.178.32.0/20
                    - 168.235.224.0/24
                    - 195.130.217.0/24
                    - 91.220.42.0/24
                    - 146.101.78.0/24
                    - 207.82.80.0/24
                    - 213.167.81.0/25
                    - 193.7.207.0/25
                    - 213.167.75.0/25
                    - 185.58.85.0/24
                    - 185.58.86.0/24
                    - 193.7.206.0/25
                    - 147.28.36.0/24
                    - 207.211.31.0/25
                    - 205.139.110.0/24
                    - 216.205.24.0/24
                    - 170.10.129.0/24
                    - 63.128.21.0/24
                    - 170.10.133.0/24
                    - 185.58.84.93/32
                    - 207.211.41.113/32
                    - 207.211.30.64/26
                    - 207.211.30.128/25
                    - 216.145.221.0/24
                    - 170.10.128.0/24
                    - 170.10.132.56/29
                    - 170.10.132.64/29
                    - 41.74.192.0/22
                    - 41.74.200.0/23
                    - 41.74.196.0/22
                    - 41.74.204.0/23
                    - 41.74.206.0/24
                    - 51.163.158.0/24
                    - 194.104.109.0/24
                    - 194.104.111.0/24
                    - 194.104.110.21/32
                    - 194.104.110.240/28
                    - 62.140.10.21/32
                    - 62.140.7.0/24
                    - 194.104.108.240/29
                    - 194.104.108.21/32
                    - 103.13.69.0/24
                    - 124.47.150.0/24
                    - 124.47.189.0/24
                    - 103.96.23.0/24
                    - 103.96.21.0/24
                    - 180.189.28.0/24
                    - 216.145.217.0/24
                    - 103.96.22.96/28
                    - 103.96.22.22/32
                    - 103.96.20.22/32
                    - 103.96.20.96/28
                    - 170.10.145.0/24
                    - 170.10.147.0/24
                    - 170.10.144.126/32
                    - 170.10.146.126/32
                    - 170.10.144.240/29
                    - 170.10.146.240/29
                    - 216.145.216.0/24
                  dns_lookups_num: 8
                  domains_extracted:
                  - myspace.com
                  - _netblocks.mimecast.com
                  - eu._netblocks.mimecast.com
                  - us._netblocks.mimecast.com
                  - za._netblocks.mimecast.com
                  - de._netblocks.mimecast.com
                  - au._netblocks.mimecast.com
                  - ca._netblocks.mimecast.com
                  elapsed_ms: 1118
                  has_issues: false
                  has_spf_record: true
                  host: myspace.com
                  ip_pass: false
                  macros_found: false
                  spf_record: v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all
                  spf_records_list:
                  - authorized_ips:
                      ipv4:
                      - 63.208.226.34
                      - 204.16.32.0/22
                      - 67.134.143.0/24
                      - 216.205.243.0/24
                      - 34.85.156.5/32
                      - 35.245.108.108/32
                      - 34.86.129.193/32
                      - 34.86.134.94/32
                      - 34.85.222.234/32
                      - 34.86.176.234/32
                      - 34.86.125.212/32
                      - 34.85.224.60/32
                      - 34.86.160.49/32
                      - 35.245.64.166/32
                      - 35.188.226.11/32
                      - 34.86.208.228/32
                      - 34.85.216.144/32
                      - 35.221.22.153/32
                      - 34.86.137.108/32
                      - 34.86.51.35/32
                      - 34.150.221.40/32
                      - 34.85.216.70/32
                      - 34.86.37.191/32
                      - 34.85.214.215/32
                      - 35.236.234.82/32
                      - 34.86.161.241/32
                      - 216.32.181.16
                      - 216.178.32.0/20
                      - 168.235.224.0/24
                    chars_num: 637
                    domains:
                    - _netblocks.mimecast.com
                    origin: myspace.com
                    record: v=spf1 mx ip4:63.208.226.34 ip4:204.16.32.0/22 ip4:67.134.143.0/24 ip4:216.205.243.0/24 ip4:34.85.156.5/32 ip4:35.245.108.108/32 ip4:34.86.129.193/32 ip4:34.86.134.94/32 ip4:34.85.222.234/32 ip4:34.86.176.234/32 ip4:34.86.125.212/32 ip4:34.85.224.60/32 ip4:34.86.160.49/32 ip4:35.245.64.166/32 ip4:35.188.226.11/32 ip4:34.86.208.228/32 ip4:34.85.216.144/32 ip4:35.221.22.153/32 ip4:34.86.137.108/32 ip4:34.86.51.35/32 ip4:34.150.221.40/32 ip4:34.85.216.70/32 ip4:34.86.37.191/32 ip4:34.85.214.215/32 ip4:35.236.234.82/32 ip4:34.86.161.241/32 ip4:216.32.181.16 ip4:216.178.32.0/20 ip4:168.235.224.0/24 include:_netblocks.mimecast.com -all
                    use_macro: false
                  - chars_num: 221
                    domains:
                    - eu._netblocks.mimecast.com
                    - us._netblocks.mimecast.com
                    - za._netblocks.mimecast.com
                    - de._netblocks.mimecast.com
                    - au._netblocks.mimecast.com
                    - ca._netblocks.mimecast.com
                    origin: _netblocks.mimecast.com
                    record: v=spf1 include:eu._netblocks.mimecast.com include:us._netblocks.mimecast.com include:za._netblocks.mimecast.com include:de._netblocks.mimecast.com include:au._netblocks.mimecast.com include:ca._netblocks.mimecast.com ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 195.130.217.0/24
                      - 91.220.42.0/24
                      - 146.101.78.0/24
                      - 207.82.80.0/24
                      - 213.167.81.0/25
                      - 193.7.207.0/25
                      - 213.167.75.0/25
                      - 185.58.85.0/24
                      - 185.58.86.0/24
                      - 193.7.206.0/25
                      - 147.28.36.0/24
                    chars_num: 225
                    origin: eu._netblocks.mimecast.com
                    record: v=spf1 ip4:195.130.217.0/24 ip4:91.220.42.0/24 ip4:146.101.78.0/24 ip4:207.82.80.0/24 ip4:213.167.81.0/25 ip4:193.7.207.0/25 ip4:213.167.75.0/25 ip4:185.58.85.0/24 ip4:185.58.86.0/24 ip4:193.7.206.0/25 ip4:147.28.36.0/24 ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 207.211.31.0/25
                      - 205.139.110.0/24
                      - 216.205.24.0/24
                      - 170.10.129.0/24
                      - 63.128.21.0/24
                      - 170.10.133.0/24
                      - 185.58.84.93/32
                      - 207.211.41.113/32
                      - 207.211.30.64/26
                      - 207.211.30.128/25
                      - 216.145.221.0/24
                      - 170.10.128.0/24
                      - 170.10.132.56/29
                      - 170.10.132.64/29
                    chars_num: 299
                    origin: us._netblocks.mimecast.com
                    record: v=spf1 ip4:207.211.31.0/25 ip4:205.139.110.0/24 ip4:216.205.24.0/24 ip4:170.10.129.0/24 ip4:63.128.21.0/24 ip4:170.10.133.0/24 ip4:185.58.84.93/32 ip4:207.211.41.113/32 ip4:207.211.30.64/26 ip4:207.211.30.128/25 ip4:216.145.221.0/24 ip4:170.10.128.0/24 ip4:170.10.132.56/29 ip4:170.10.132.64/29 ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 41.74.192.0/22
                      - 41.74.200.0/23
                      - 41.74.196.0/22
                      - 41.74.204.0/23
                      - 41.74.206.0/24
                    chars_num: 106
                    origin: za._netblocks.mimecast.com
                    record: v=spf1 ip4:41.74.192.0/22 ip4:41.74.200.0/23 ip4:41.74.196.0/22 ip4:41.74.204.0/23 ip4:41.74.206.0/24 ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 51.163.158.0/24
                      - 194.104.109.0/24
                      - 194.104.111.0/24
                      - 194.104.110.21/32
                      - 194.104.110.240/28
                      - 62.140.10.21/32
                      - 62.140.7.0/24
                      - 194.104.108.240/29
                      - 194.104.108.21/32
                    chars_num: 201
                    origin: de._netblocks.mimecast.com
                    record: v=spf1 ip4:51.163.158.0/24 ip4:194.104.109.0/24 ip4:194.104.111.0/24 ip4:194.104.110.21/32 ip4:194.104.110.240/28 ip4:62.140.10.21/32 ip4:62.140.7.0/24 ip4:194.104.108.240/29 ip4:194.104.108.21/32 ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 103.13.69.0/24
                      - 124.47.150.0/24
                      - 124.47.189.0/24
                      - 103.96.23.0/24
                      - 103.96.21.0/24
                      - 180.189.28.0/24
                      - 216.145.217.0/24
                      - 103.96.22.96/28
                      - 103.96.22.22/32
                      - 103.96.20.22/32
                      - 103.96.20.96/28
                    chars_num: 229
                    origin: au._netblocks.mimecast.com
                    record: v=spf1 ip4:103.13.69.0/24 ip4:124.47.150.0/24 ip4:124.47.189.0/24 ip4:103.96.23.0/24 ip4:103.96.21.0/24 ip4:180.189.28.0/24 ip4:216.145.217.0/24 ip4:103.96.22.96/28 ip4:103.96.22.22/32 ip4:103.96.20.22/32 ip4:103.96.20.96/28 ~all
                    use_macro: false
                  - authorized_ips:
                      ipv4:
                      - 170.10.145.0/24
                      - 170.10.147.0/24
                      - 170.10.144.126/32
                      - 170.10.146.126/32
                      - 170.10.144.240/29
                      - 170.10.146.240/29
                      - 216.145.216.0/24
                    chars_num: 160
                    origin: ca._netblocks.mimecast.com
                    record: v=spf1 ip4:170.10.145.0/24 ip4:170.10.147.0/24 ip4:170.10.144.126/32 ip4:170.10.146.126/32 ip4:170.10.144.240/29 ip4:170.10.146.240/29 ip4:216.145.216.0/24 ~all
                    use_macro: false
                  spf_valid: true
                code: 200
        '401':
          description: Your request was not authorized, or your API Key was invalid
        '404':
          description: Requested resource was not found
        '500':
          description: A server error has occured, try again later
components:
  securitySchemes:
    api_key:
      type: apiKey
      name: x-api-key
      in: header
security:
- api_key: []
Live Test API in Playground

Client Libraries

To get started with minimal code, most of our APIs are available through client libraries and clients:

run in postman button npm logo pypi logo nuget logo swagger logo

Response Types

The SPF Validator API supports the following response content types:

application/json, application/xml, application/yaml

You can specify the response content type by setting the Accept header in your request. If you don't specify a content type, the API will default to application/json.

Authentication

The SPF Validator API uses an API Key to authenticate requests. You can view and manage your API key by visiting your dashboard.

Your API keys carry many privileges. To keep them from being abused, please do not share the keys on client-side code or Github etc. Keep them very secure.

All requests made to the API must contain the header x-api-key in each of your requests. API requests without authentication will fail.

All API requests must also be made over secure HTTPS. Requests made over plain HTTP will fail.

Error Code Meaning
401 Your request was made with invalid credentials. This error also appears when you don't pass the x-api-key header in your request.

Rate Limits

	
{
    "status": "error",
    "data": null,
    "error": "tokens have been depleted",
    "code": 429
}

Each subscription has its own monthly token limit. Your token count is based on your subscription plan. If you reach your limits, don't worry. You can always upgrade or downgrade at any time. View Pricing

When you reach your limit, the service will stop responding and typically return an HTTP 429 response status code. The error will also contain a detailed JSON.

The SPF Validator API uses the following error code:

Error Code Meaning
429 You have exceeded your rate limit and further requests will be denied until the next cycle.

Error Codes

For reference, the SPF Validator API uses the following error codes:

Error Code Meaning
Code Message
200 The request was successful. The response will include the requested data.
400 The request was invalid. The response will include a message that explains the error.
401 The request was not authorized. Usually, this means that the API key is missing or invalid.
403 This means that the request was trying to access a resource that it does not have permission to access.
404 This means that the resource you are trying to access does not exist.
429 This means that you have reached the rate limit. The response will include a Retry-After header that indicates how many seconds you need to wait before making a new request.
500 This means that there was an error on the server side. We are alerted when this happens and we will work to fix it as soon as possible.
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