		@@ -347,6 +347,6 @@ 'use strict';

		exports.ipv6_bogus = function (ipv6){
		exports.ipv6_bogus = function (ipv6) {
		try {
		const ipCheck = ipaddr.parse(ipv6);
		if (ipCheck.range() !== 'unicast') { return true; }
		if (ipCheck.range() !== 'unicast') return true;
		return false;
		@@ -422,47 +422,12 @@ }
		// wrap_mx returns our object with "priority" and "exchange" keys
		let wrap_mx = a => a;
		const wrap_mx = a => a;

		function process_dns (err, addresses) {
		if (err) {
		// Most likely this is a hostname with no MX record
		// Drop through and we'll get the A record instead.
		switch (err.code) {
		case 'ENODATA':
		case 'ENOTFOUND':
		return 0;
		default:
		}
		dns.resolveMx(domain, (err, addresses) => {

		cb(err, mxs);
		for (const addr of addresses) {
		mxs.push(wrap_mx(addr));
		}
		else if (addresses && addresses.length) {
		for (const addr of addresses) {
		mxs.push(wrap_mx(addr));
		}

		cb(null, mxs);
		}
		else {
		// return zero if we need to keep trying next option
		return 0;
		}
		return 1;
		}

		dns.resolveMx(domain, (err, addresses) => {
		if (process_dns(err, addresses)) return;

		// if MX lookup failed, we lookup an A record. To do that we change
		// wrap_mx() to return same thing as resolveMx() does.
		wrap_mx = a => ({ priority: 0, exchange: a });

		// IS: IPv6 compatible
		dns.resolve(domain, (err2, addresses2) => {
		if (process_dns(err2, addresses2)) return;

		err2 = new Error("Found nowhere to deliver to");
		err2.code = 'NOMX';
		cb(err2, mxs);
		})
		cb(err, mxs);
		})
		}

package.json

		{
		"name": "haraka-net-utils",
		"version": "1.2.1",
		"version": "1.2.2",
		"description": "haraka network utilities",
		@@ -5,0 +5,0 @@ "main": "index.js",

test/net_utils.js

		@@ -1069,2 +1069,3 @@
		it('gets MX records for a domain', function (done) {
		this.timeout(3000)
		this.net_utils.get_mx('tnpi.net', (err, mxlist) => {
		@@ -1093,18 +1094,2 @@ assert.ifError(err);
		})

		it('gets an IP (no MX) for mail-toaster.org', function (done) {
		this.net_utils.get_mx('mail-toaster.org', (err, mxlist) => {
		assert.equal(mxlist.length, 1);
		assert.equal(mxlist[0].exchange, '66.128.51.170');
		done();
		})
		})

		it('gets a MX for über.cadillac.net', function (done) {
		this.net_utils.get_mx('über.cadillac.net', (err, mxlist) => {
		assert.equal(mxlist.length, 1);
		assert.equal(mxlist[0].exchange, '127.0.0.1');
		done();
		})
		})
		})
		})

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