Reverse MX Lookup API

Identify All Domains Sharing the Same Mail Server

Our Reverse MX Lookup API allows users to find all domains using a specific mail server, helping to uncover potential shared email hosting.

Enhance your security by identifying co-hosted domains, monitoring for suspicious activities, and detecting vulnerabilities across shared mail servers.

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Why Choose ViewDNS.info Reverse MX Lookup API?

  • Identify Domains Associated With Malicious Actors
  • Constant Updates Ensure Up-To-Date Results
  • Identify Relationships Between Domains
  • Highly Scalable to meet Business Needs
  • Subscription Includes Access to ALL ViewDNS.info APIs

Our Valued Customers Include:

Blizzard DuckDuckGo Kaspersky NTT LaPoste

Key Reverse MX Lookup API Features

Up-to-date Data

Our API leverages a backend that is constantly monitoring the mail servers of hundreds of millions of domain name, ensuring that the most up to date results are available.

Asset Discovery

Our Reverse MX Lookup API allows for the discovery of potentially unknown assets using your mail servers in order to ensure you have a comprehensive picture of your internet footprint.

Identify Connections

Our API can show connections between domain names previously thought to be unrelated.

Fight SPAM

Our Reverse MX can assist in minimising spam email by searching for domain names using the same mail server as known spamming domains.

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Usage Details

Takes a mail server and quickly shows all domains using the same mail server.

/reversemx GET

https://api.viewdns.info/reversemx/

Useful for finding identifying potential spam sources or related domains. By default, the first 10,000 results are returned.

Parameters

  • apikey required

    Your API key associated with your ViewDNS.info account.

  • mx required

    The mail server to perform the Reverse MX lookup on (e.g., mail.google.com).

  • page optional (default=1)

    The page of results to display (e.g. '2' to view results 10,001 to 20,000).

  • output optional (default=json)

    The output format required ('xml' or 'json').

Sample Request Live Demo!

https://api.viewdns.info/reversemx/?mx=mail.google.com&apikey=demo&output=json

Sample Response

{
  "query": {
    "tool": "reversemx_PRO",
    "mailserver": "mail.google.com"
  },
  "response": {
    "domain_count": "981",
    "total_pages": "1",
    "current_page": "1",
    "domains": [
      "090803.com",
      "1sthealthcare.net",
      "1sthealthsystems.com",
      "2redl.in",
      "44825263.com",
      "65red1.com",
      "aboutyoufitness.com",
      "academyhill.org",
      "acbergula.org",
      "accuweight-1014.com",
      "accuweight-1015.com",
      "accuweight-1016.com",
      "accuweight-1017.com",
      "accuweight-1018.com",
      "accuweight-1019.com",
      "accuweight-terminal01.com",
      "adamsballs.com",
      "adelaidecampervans.com",
      "ademarsousa.com.br",
      "adequaninfo.com",
      "adjustlink.info",
      "adjustlink.net",
      "adjustlink.org",
      "admarket.site",
      "agelidisailesi.com",
      "agerco.com",
      "agrithority.net",
      "aispinc.net",
      "akna.ro",
      "alfath.org",
      "alma-management.cl",
      "almacenapp.com",
      "alokprakash.com",
      "alpascual.com",
      "alreadydonerenovations.com",
      "alternatives-seniorlivingplacements.com",
      "alwaysfindyourway.com",
      "amuza-ma.ro",
      "animalwhistler.com",
      "appforce.co.nz",
      "arayacleanfranchise.com",
      "areadeeventos.com.br",
      "armedcards.com",
      "arrowflasharabic.com",
      "artsalliancegw.org",
      "athleticdepartment.com",
      "aulasvirtuales.com",
      "autoescolagabriela.com.br",
      "avalanchecompany.com",
      "awardrecord.com",
      "awardrecords.com",
      "azcommercialroofing.net",
      "azroofing.net",
      "babullets.com",
      "badass-army.com",
      "badass-nation.com",
      "badass-products.com",
      "badassaccessories.com",
      "badassbulletarmy.com",
      "badassbulletgirl.com",
      "badassbulletgirls.com",
      "badassbulletnation.com",
      "badassfenderfluff.com",
      "badassmag.com",
      "bakerstreet.mobi",
      "bakerstreet.solutions",
      "bakerstreetmarketplace.net",
      "barcode-maker.com",
      "bccapplication.com",
      "bearmisha.com",
      "bebephotography.net",
      "bellevuecigarclub.com",
      "belumtours.com",
      "bendpiper.org",
      "berlinerhonig.de",
      "betco-lb.com",
      "biguslawkc.com",
      "bikeriderexchange.com",
      "bisuloungeclub.com",
      "bizmosis.biz",
      "bizmosis.net",
      "bizmosis.org",
      "bizmosismail.com",
      "blunkit.in",
      "bookithealth.net",
      "bookithealth.org",
      "bouncealot.com",
      "bowmanpics.com",
      "bucks-county-wedding-photographer.com",
      "businesscoachkansascity.com",
      "bythebeachdeals.com",
      "c-o-d-e-red.co.uk",
      "cairnscampervans.com",
      "calahonda-rental.com",
      "canyoubethere.com",
      "capitalregioncosmo.org",
      "cardservicecompany.com",
      "cascadehighlanders.com",
      "castlewooddoors.net",
      ...
    ]
  }
}

Code Example