insight-bitcore-api/plugins/config-emailstore.js

An open-source bitcoin blockchain API. The Insight API provides you with a convenient, powerful and simple way to query and broadcast data on the bitcoin network and build your own services with it.

var smtpTransport = require('nodemailer-smtp-transport');

// you can use Gmail or any other nodemailer transport
var auth = {
  host: 'localhost',
  port: 25,
  ignoreTLS: true,
};
//
//
module.exports = {
  confirmEmailHost: 'https://insight.bitpay.com',
  email: smtpTransport(auth),
};