API: ReverseMX

The ReverseMX API call returns domains hosted on the same mail server (MX record). It will only returns domains currently using a MX record. Use the ReverseHistory API to find domains using a MX record in the past.

This is a Premium API call, you have to buy API credits here (https://dnslytics.com/api).

API request and parameters

https://api.dnslytics.net/v1/reversemx/<mxrecord>?apikey=<apikey>

Parameters:

mxrecord:

MX record, for example aspmx.l.google.com

apikey:

Your API key

Optional parameter:

page:

A single API call returns a maximum of 2,500 domains. With the page parameter you can step through the results and get results up to 100,000 domains. Page value can be between 1 and 40.

API response

A JSON object with the following fields:

status:

Status of API call: succeed or error.

question:

Array of the question data with the following fields: mxrecord and page.

typeinfo:

Data type returned, always ‘reversemx’.

ndomains:

Total number of domains found using the MX record.

domains:

Array of domains using the MX record. Maximum of 2,500 domain names are returned. Use the page parameter to get up to 100,000 domain names.

Example

$ https://api.dnslytics.net/v1/reversemx/mx1.emailowl.com?apikey=<apikey>

{
        "status": "succeed",
        "data":
        {
                "question":
                {
                  "mxrecord": "mx1.emailowl.com",
                  "page": 1
                },
                "typeinfo": "reversemx",
                "ndomains": 30367,
                "domains":[
                        "dnslytics.com",
                        "myip.report",
                        "..."
                ]
        }
}