andris9

// public domain code

// $ npm install dns2
// $ node app.js

// $ dig A example.com @127.0.0.1 -p5053
// $ dig A example.com +tcp @127.0.0.1 -p5053

const dns = require("dns2");
const { createDNSUdpServer, createDNSTcpServer } = require("./dns-server.js");

andris9

// npm install zone-mta
const bounces = require("zone-mta/lib/bounces");

let str = "550 11.22.33.44 listed at spamhaus, see http://www.spamhaus.org";
let bounceInfo = bounces.check(str);
console.log("data     : %s", str.replace(/\n/g, "\n" + " ".repeat(11)));
Object.keys(bounceInfo || {}).forEach((key) => {
  console.log("%s %s: %s", key, " ".repeat(8 - key.length), bounceInfo[key]);
});

andris9

/* eslint no-console: 0 */

'use strict';

const nodemailer = require('nodemailer');

// Create a SMTP transporter object
let transporter = nodemailer.createTransport({
    host: 'smtp.office365.com',
    port: 587,

andris9

// NB! these counters do not expire so it might be too simplistic
class MTALocker {
    constructor() {
        this.counters = new Map();
    }

    // helper to get correct counter Map
    getPidCounters(pid){
        if(!this.counters.has(pid)){
            this.counters.set(pid, new Map());

andris9

const dns = require('dns').promises;

// domain list to process
let domains = [
    'neti.ee',
    'hot.ee',
    'zone.ee',
    'telia.ee',
    'a.ee',
    'delfi.ee',

andris9

const dns = require('dns').promises;

// how many parallel "workers" to use
let batchSize = 3;

// domain list to process
let domains = [
    'neti.ee',
    'hot.ee',
    'zone.ee',

andris9

const dns = require('dns').promises;

// how many parallel "workers" to use
let batchSize = 3;

// domain list to process
let domains = [
    'neti.ee',
    'hot.ee',
    'zone.ee',

andris9

const dns = require('dns');

// how many parallel "workers" to use
let batchSize = 3;

// domain list to process
let domains = [
    'neti.ee',
    'hot.ee',
    'zone.ee',

andris9

'use strict';

// $ npm install nodemailer mailsplit libmime
// $ node forwarder.js

const nodemailer = require('nodemailer');
const mailsplit = require('mailsplit');
const libmime = require('libmime');
const Transform = require('stream').Transform;

andris9

// store as plugins/customrouter.js

'use strict';

module.exports.title = 'Custom router';
module.exports.init = function(app, done) {
    // Set up custom MX for a delivery
    app.addHook('sender:fetch', (delivery, next) => {
        delivery.mx = [{
            priority: 0,