salix/print/lib/smtp.js

const nodemailer = require('nodemailer');
const config = require('./config.js');

module.exports = {
    init() {
        if (!this.transporter)
            this.transporter = nodemailer.createTransport(config.smtp);
    },

    send(options) {
        options.from = `${config.app.senderName} <${config.app.senderMail}>`;

        if (process.env.NODE_ENV !== 'production') {
            if (!config.smtp.user)
                return Promise.resolve(true);

            options.to = config.app.senderMail;
        }

        return this.transporter.sendMail(options);
    }
};