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InboxPlus

Last updated Dec 24, 2025

InboxPlus integration for n8n - node for sending emails and managing sequences

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Included Nodes

InboxPlus

Description

n8n-nodes-inboxplus

InboxPlus integration for n8n – Send emails with templates and automate follow-up sequences.

Features

  • ✅ Load email templates from InboxPlus
  • ✅ Generate tracking pixels for email analytics
  • ✅ Send emails via Gmail with InboxPlus templates
  • ✅ Start automated follow-up sequences
  • ✅ Track email opens and replies
  • ✅ Automatic follow-up management
  • Installation

    cd n8n-nodes-inboxplus
    pnpm install
    pnpm build
    pnpm link --global
    

    Then restart your n8n instance or link in your n8n custom nodes directory.

    Credentials

    You need an InboxPlus API key (JWT token) from your InboxPlus account.

    1. Go to InboxPlus Profile → Manage API → Generate API
    2. Copy your API key
    3. In n8n: Credentials → Add → InboxPlus API
    4. Paste your API key

    Operations

    1. Prepare Email

    Loads an InboxPlus template and generates tracking.

    Parameters:

  • Recipient Email
  • Template (dropdown – loads from your InboxPlus account)
  • Output:

    {
      "recipientEmail": "contact@example.com",
      "subject": "Email Subject",
      "body": "
    Email content
    ", "gmailBodyHtml": "
    Email content

    ", "trackingId": "uuid" }

    2. Start Sequence

    Records the sent email in InboxPlus and starts automated follow-up sequence.

    Parameters:

  • Sender Email
  • Recipient Email
  • Subject (from Prepare Email)
  • Thread ID (from Gmail)
  • Message ID (from Gmail)
  • Tracking ID (from Prepare Email)
  • Sequence (dropdown – loads from your InboxPlus account)
  • Output:

    {
      "success": true,
      "sequenceId": "uuid",
      "recipientEmail": "contact@example.com",
      "apiResponse": { "code": 200, "success": 1 }
    }
    

    Workflow Example

    [Trigger]
        ↓
    [InboxPlus: Prepare Email]
      - Recipient: contact@example.com
      - Template: "Welcome Email"
        ↓
    [Gmail: Send Message]
      - To: {{ $json.recipientEmail }}
      - Subject: {{ $json.subject }}
      - Body HTML: {{ $json.gmailBodyHtml }}
        ↓
    [InboxPlus: Start Sequence]
      - Sender: you@example.com
      - Recipient: {{ $("InboxPlus").item.json.recipientEmail }}
      - Subject: {{ $("InboxPlus").item.json.subject }}
      - Thread ID: {{ $("Gmail").item.json.threadId }}
      - Message ID: {{ $("Gmail").item.json.id }}
      - Tracking ID: {{ $("InboxPlus").item.json.trackingId }}
      - Sequence: "Onboarding Sequence"
    

    How It Works

    1. Prepare Email – Fetches template from InboxPlus and generates tracking pixel
    2. Gmail – Sends the email (Day 0) with template content and tracking
    3. Start Sequence – Records email in InboxPlus and starts automated follow-ups

    InboxPlus then:

  • Monitors the email thread for replies
  • Sends Day 1, Day 2, etc. follow-ups automatically
  • Stops sequence if recipient replies
  • Tracks opens and clicks
  • Field Mapping

    From Prepare Email to Gmail:

  • recipientEmail → Gmail “To”
  • subject → Gmail “Subject”
  • gmailBodyHtml → Gmail “Body HTML”
  • From Prepare Email to Start Sequence:

  • recipientEmail → “Recipient Email”
  • subject → “Subject”
  • trackingId → “Tracking ID”
  • From Gmail to Start Sequence:

  • threadId → “Thread ID”
  • id → “Message ID”
  • Important Notes

  • Gmail is required – InboxPlus works WITH Gmail, not as a replacement
  • Day 0 sent by Gmail – The first email is sent via Gmail node
  • Follow-ups by InboxPlus – Automated follow-ups are sent by InboxPlus
  • Tracking included – Tracking pixel is automatically added to emails
  • Reply detection – InboxPlus monitors for replies and stops sequences
  • API Endpoints Used

  • POST /user-emails/n8n/get-email-templates – Load templates
  • POST /user-emails/n8n/get-sequences – Load sequences
  • POST /user-emails/n8n/tracking-id – Generate tracking
  • POST /user-emails/n8n – Record email and start sequence
  • Troubleshooting

    Templates not loading

  • Check API key is correct
  • Verify templates exist in InboxPlus dashboard
  • Sequence not starting

  • Ensure all fields are mapped correctly
  • Check API response in node output
  • Verify sequence exists and is active
  • Follow-ups not sending

  • Wait for the configured delay (e.g., 24 hours for Day 1)
  • Check sequence is active in InboxPlus dashboard
  • Verify Gmail is connected in InboxPlus settings
  • Version

    Current version: 1.1.2

    Author

    Avkash Kakdiya

  • Email: avkash@itechnotion.com
  • Github: https://github.com/itechnotion

License

MIT