Skip to content
Go to file


Failed to load latest commit information.
Latest commit message
Commit time

NPM npm David

CandyMail - Email Automation for Node.js

Candymail makes it easy to trigger and send multi-step email sequences in Node.js using a single JSON file. Built for bootstrappers, indie makers with special care.

New in 1.0.10

  • Full Typescript Support

New in 1.0.8

  • Add HTML Templates
  • Unsubscribe Option added to email footer


  1. Portable: Create, share and reuse email marketing strategies between different products
  2. Simple to use: Time to send, subject, body of the emails can all be set up in a single JSON file
  3. Free: No need to pay for monthly Mailchimp etc. payments for email automation plans

Use Cases

  • Build better onboarding by guiding the user through the app with paced training emails
  • Reduce churn by sending exciting community content every few days
  • Convert more customers to paid plans by offering discounts based on the user's usage activity


Install candymail using yarn:

yarn add candymail

Or npm:

npm install --save candymail

Getting Started


Create a candymail.automation.json file on the root level of your project.

Here's a sample:

  "automations": [
      "name": "automation1",
      "description": "tell users about pro features",
      "trigger_name": "proplan",
      "emails": [
          "trigger": "time",
          "sendDelay": 1,
          "subject": "Have you tried Feature A?",
          "body": "Feature A will let you do ABC things. <p>We can also do HTML!</p>",
          "from": ""
          "trigger": "time",
          "sendDelay": 3,
          "subject": "Try our feature B!",
          "body": "We released feature B just last week and can't wait for you to try it out :)",
          "from": ""

Supported Email Providers

  • Gmail
  • Looking for more support? Send me a message.

Simple Usage

const path = require('path')
const candymail = require('candymail')

const automationPath = path.resolve('candymail.automation.json')

candymail.init(automationPath, {
  senderEmail: **GMAILEMAIL**,
  senderPassword: **GMAILPASSWORD**


const user = ''
candymail.runAutomation('automation1', user)

console.log('Emails added to queue', candymail.getAllScheduledMessages())

Usage with Express Server

const path = require('path')
const candymail = require('candymail')
const express = require('express')
const app = express()
const port = 3000

const automationPath = path.resolve('examples', 'candymail.automation.json')
candymail.init(automationPath, {
  senderEmail: process.env.MAIL_USER,
  senderPassword: process.env.MAIL_PASSWORD,
  hostingURL: 'http://localhost:3000',


const someConditionSatisfiedByUser = () => {
  const user = ''
  candymail.runAutomation('automation1', user)

app.get('/', (req, res) => {
    'Welcome to Candymail Demo. Go to /trigger to trigger the `automation1` email automation. Be sure to replace email with yours in the `someConditionSatisfiedByUser` method to be able to view the messages.'

app.get('/trigger', (req, res) => {

app.get('/unsubscribe', (req, res) => {
  const { email } = req.query
  res.send(`Sent a unsubscribe request for ${email}`)

app.listen(port, () => {
  console.log(`Learn about our new features at http://localhost:${port}/trigger`)

Note: Having problems with Gmail? Enable Allow less secure apps in Google Account settings here.

Automation File Options

Property Required Description
trigger No Name of the trigger (Not usable)
sendDelay Yes Delay after which the email will be sent (in hours). From time 0, not from the last email
subject Yes Subject of the email
body Yes Body of the email: HTML or Text
from Yes Sender's Email Address


init (automationPath, config)

Initializes automations specified in the automation path and sets the configuration with sender's email and password.

  • automationPath: Absolute path to the candymail.automation.json file. Example: path.resolve('example', 'candymail.automation.json') if the file is located at *ROOT*/example/candymail.automation.json.

  • config: {senderEmail -> Gmail Address of the sender, senderPassword -> Gmail Password of the sender }


Starts the internal timer that will send emails at appropriate times.


Triggers an automation based on name specified in the candymail.automation.json file. Needs candymail.start() to have been called.

  • automationName: Name of automation in candymail.automation.json. Example: 'automation1'.


Get the list of all scheduled messages.


Get the list of scheduled messages for a particular time.

  • time: Time should be specified in this format: MM/DD/YYYY:HH. For Example: 8/20/2020:2.


Clears all scheduled messages.


Stops the internal timer. Can be restarted with candymail.start()


Destroys the internal timer.


Unsubscribes a user's email. No further emails will be sent out to the user.


  1. Only the hour value will be used in the cron, minutes will be ignored. +1 hour at 11:58 is 12.
  2. Object keys: MM/DD/YYYY:HH. Hours are specified in 24-hour format.
  3. There is currently no Unsubscribe option in the emails. Being worked on right now.
  4. Only supports GMail. More providers being added right now.

Looking to contribute?

Read the and pick up issues to work on from the Project Roadmap here.

Got Feedback? Hit me up at
Now available for freelance work.