Node.js

MX Lookup Mail Server Domain by Email Address

How to find the mail server for a given email address. Returns the domain name of the primary mail server. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var dns = new chilkat.Dns();
    var json = new chilkat.JsonObject();

    var emailAddr = "bob@example.com";

    // This gets all MX domains for an email address.  (Typically one domain.)
    // The preferred domain will be at index 0 (see below).
    success = dns.Query("MX",emailAddr,json);
    if (success == false) {
        console.log(dns.LastErrorText);
        return;
    }

    var i = 0;
    var count_i = json.SizeOfArray("answer.mx");
    while (i < count_i) {
        json.I = i;
        var domain = json.StringOf("answer.mx[i].domain");
        console.log(domain);
        i = i+1;
    }


}

chilkatExample();