Send HR job application auto-replies with Gmail and OpenAI GPT-4o
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 8 nodes and runs on Gmail events. Along the way it connects Gmail and OpenAI Chat Model.
How it runs
Trigger: On Gmail events.
- Check Subject Condition (If): checks a condition and branches into true / false
- Set Email Parameters (Edit Fields (Set)): sets 3 fields: candidateEmail, subject, companyEmail
- Email Content Analyzer Agent (AI Agent): runs an AI agent, with model: AI Draft Generator; output parser: Parse AI Output
- Send Automated Reply (Send Email): sends an email over SMTP
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
- Still check Gmail Trigger below v1.4 runs as v1.4 (drafts skipped, max emails per poll) (When Email Received).
Nodes used (8)
- Gmail Trigger
n8n-nodes-base.gmailTrigger - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - AI Agent
@n8n/n8n-nodes-langchain.agent - Edit Fields (Set)
n8n-nodes-base.set - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Send Email
n8n-nodes-base.emailSend - If
n8n-nodes-base.if - No Operation, do nothing
n8n-nodes-base.noOp
From the author
Quick overview This workflow monitors a labeled Gmail inbox for job application emails, uses OpenAI (GPT-4o) to draft a structured HR reply, and sends the response back to the applicant via SMTP email. How it works 1. Polls Gmail every minute for new emails…