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Classify emails & extract structured data from job applications with GPT-4o

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Classify emails & extract structured data from job applications with GPT-4o preview
Open on n8n.io

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Who is this template for? This workflow template is designed for business owners and HR professionals to automatically detect and structure unstructured job applications received through email. Add...

Best for

  • HR automation workflows
  • AI Summarization automation workflows
  • intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.emailreadimap, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.textclassifier, @n8n/n8n-nodes-langchain.informationextractor, n8n-nodes-base.extractfromfile, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.noop

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Sleak.

Original n8n.io source

1.1 Workflow description

Title
Classify emails & extract structured data from job applications with GPT-4o
Workflow name
Classify emails & extract structured data from job applications with GPT-4o

Who is this template for?

This workflow template is designed for business owners and HR professionals to automatically detect and structure unstructured job applications received through email. Additionally, other email categories can be added, each with it's own workflow.

How it works

  • Every time a new email is received, an OpenAI model classifies it into a predefined category by analyzing the plain text of the email and the extracted content from the attachment.
  • If the email is classified as a job application, an OpenAI model uses the email’s plain text and extracted attachment content to populate predefined fields such as age and study.
  • A relevant additional step would be to directly push the applicant and their structured job application into a CRM or ATS like Hubspot or Recruitee.

Set up steps

  1. Configure your IMAP credentials to connect your email account. Use this n8n documentation page for quickstart guides for common email providers.

  2. Connect your OpenAI account in the 'Classify email' node.

    • And add or remove any category for classification in this node. Make sure the description is clear and concise.

  3. Connect your OpenAI account in the 'Extract variables - email & attachment' node.

    • And add or remove any predefined fields that should be populated for job applications in this node. Make sure the description is clear and concise.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Email trigger

Type / Role
n8n-nodes-base.emailReadImap - emailReadImap
Config choices
Version 2

Block 2 - Sticky Note

Type / Role
n8n-nodes-base.stickyNote - stickyNote
Config choices
Version 1

Block 3 - Classify email

Type / Role
@n8n/n8n-nodes-langchain.textClassifier - textClassifier
Config choices
Version 1

Block 4 - Extract variables - email & attachment

Type / Role
@n8n/n8n-nodes-langchain.informationExtractor - informationExtractor
Config choices
Version 1

Block 5 - Extract data from attachment

Type / Role
n8n-nodes-base.extractFromFile - extractFromFile
Config choices
Version 1

Block 6 - OpenAI Chat Model 2

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1

Block 7 - OpenAI Chat Model

Type / Role
@n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices
Version 1

Block 8 - Workflow 2

Type / Role
n8n-nodes-base.noOp - noOp
Config choices
Version 1

Block 9 - Workflow 3

Type / Role
n8n-nodes-base.noOp - noOp
Config choices
Version 1

Block 10 - workflow 4

Type / Role
n8n-nodes-base.noOp - noOp
Config choices
Version 1

3. Summary Table

Workflow Classify emails & extract structured data from job applications with GPT-4o
Complexity intermediate
Nodes 10
Categories HR, AI Summarization
Author Sleak
Published 07 Apr 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/3457/3457.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

    Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.

  4. 4. Test with sample data

    Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.

  5. 5. Activate and monitor

    Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Frequently asked questions

What does Classify emails & extract structured data from job applications with GPT-4o do?

Who is this template for? This workflow template is designed for business owners and HR professionals to automatically detect and structure unstructured job applications received through email. Add...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your HR, AI Summarization use case.