Baptiste Fort This workflow corresponds to n8n.io template #7041 — we link there as the canonical source.
This workflow follows the Agent → Gmail recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "yqjaKC8KeZeMjbNt",
"meta": {
"site": "https://github.com/zengfr/n8n-workflow-all-templates",
"name": "Send a voice note on Telegram to generate a professional email with ChatGPT",
"wechat": "youandme10086",
"id": 7041,
"update_time": "2025-11-10"
},
"name": "Send a voice note on Telegram to generate a professional email with ChatGPT",
"tags": [],
"nodes": [
{
"id": "77710b8a-9745-449e-b1aa-c2a43b870ca0",
"name": "Buffer Delay (Pre-Processing)",
"type": "n8n-nodes-base.wait",
"position": [
-544,
1376
],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "12c901f4-ab54-4c95-923a-0d4c9b308505",
"name": "Download Telegram Voice File",
"type": "n8n-nodes-base.telegram",
"position": [
-208,
1376
],
"parameters": {
"fileId": "={{$json[\"message\"][\"voice\"][\"file_id\"]}}",
"resource": "file",
"additionalFields": {}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "398e821d-faba-46e5-a62e-dd5006bb521b",
"name": "Transcribe Audio to Text (OpenAI Whisper)",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
64,
1376
],
"parameters": {
"options": {},
"resource": "audio",
"operation": "transcribe"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.8
},
{
"id": "1a3d1fef-0db2-4093-9c98-dfad80edba99",
"name": "Buffer Delay (Pre-AI Processing)",
"type": "n8n-nodes-base.wait",
"position": [
320,
1376
],
"parameters": {},
"typeVersion": 1.1
},
{
"id": "bb6061e9-8a9a-486e-8c98-b86cdbacc76e",
"name": "Generate Email Content AI AGENT",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
544,
1376
],
"parameters": {
"text": "=Tu es un assistant sp\u00e9cialis\u00e9 dans la r\u00e9daction d\u2019e-mails professionnels.\n\n\u00c0 partir du texte transmis ci-dessous, tu dois : {{ $json.text }}\n\n1. **D\u00e9tecter s\u2019il y a une adresse email de destinataire** dans le texte (ou une forme proche comme \"\u00e0 envoyer \u00e0 fort.baptiste.pro\")\n - Si ce n\u2019est pas une adresse compl\u00e8te, tu dois la compl\u00e9ter en supposant qu\u2019elle se termine par `@gmail.com`.\n\n2. **Comprendre l\u2019intention de l\u2019utilisateur** (d\u00e9mission, refus, candidature, excuse, demande, etc.)\n\n3. **G\u00e9n\u00e9rer un objet d\u2019email pertinent et synth\u00e9tique**, fid\u00e8le au contenu\n\n4. **\u00c9crire un message professionnel**, structur\u00e9 en **HTML** :\n - Avec un **ton poli et adapt\u00e9** \u00e0 la situation\n - Format\u00e9 avec des balises HTML (`<p>`, `<br>`, etc.)\n - Aucune faute de fran\u00e7ais\n- mon pr\u00e9nom c'est jeremy et tu dois bien dire que s'il est pas content je demissione\n\n---\n\n\u26a0\ufe0f Tu dois **toujours** structurer ta r\u00e9ponse au **format JSON strict suivant**, sans aucun texte autour :\n\n```json\n{\n \"email\": \"adresse@gmail.com\",\n \"subject\": \"Objet de l\u2019email\",\n \"body\": \"<p>Contenu HTML de l\u2019email</p>\"\n}\n",
"options": {},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2.1
},
{
"id": "360fe0ab-d690-40b7-bca9-13d8d0f44f87",
"name": "GPT-4 Email Generator Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
560,
1568
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "372cba12-9984-487f-91d6-53b0cd214a11",
"name": "Enforce Email JSON Schema",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
752,
1568
],
"parameters": {
"jsonSchemaExample": "{\n \"email\": \"exemple@gmail.com\",\n \"subject\": \"Objet de l\u2019email\",\n \"body\": \"<p>Bonjour,</p><p>Voici un exemple d\u2019email professionnel bien structur\u00e9 avec des balises HTML.</p><p>Cordialement,<br>Jean Dupont</p>\"\n}\n"
},
"typeVersion": 1.3
},
{
"id": "ad517212-df9d-4402-8225-438f680b203d",
"name": "Send Email",
"type": "n8n-nodes-base.gmail",
"position": [
928,
1376
],
"parameters": {
"sendTo": "={{ $json.output.email }}",
"message": "={{ $json.output.body }}",
"options": {},
"subject": "={{ $json.output.subject }}"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "122ab63d-829a-49c8-8cfc-66cca365c98a",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-928,
976
],
"parameters": {
"width": 928,
"height": 592,
"content": "## \ud83d\udccc Node Setup \u2013 Initial Steps (Telegram \u2192 Download Audio)\n\n**1. Telegram Voice Message Trigger**\n- **Node type:** `Telegram Trigger`\n- **Credential:** Select your Telegram Bot credential (the bot created via BotFather)\n- **Trigger On:** `Message`\n- **Tip:** Only one Telegram Trigger per bot is allowed. This listens for every message (text, audio, etc.) sent to your bot.\n\n**2. Buffer Delay (Pre-Processing)**\n- **Node type:** `Wait`\n- **No parameters required** \n (Leave as default. This step adds a buffer to help prevent issues when multiple messages arrive at once.)\n\n**3. Download Telegram Voice File**\n- **Node type:** `Telegram`\n- **Resource:** `file`\n- **File ID:** \n"
},
"typeVersion": 1
},
{
"id": "f402d82d-ce8c-49dc-8981-ddf4dd4d12ad",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"width": 1136,
"height": 1568,
"content": "## \ud83d\udccc Node Setup \u2013 AI Transcription & Email Generation\n\n**4. Transcribe Audio to Text (OpenAI Whisper)**\n- **Node type:** OpenAI / Langchain (Transcribe Recording)\n- **Resource:** `audio`\n- **Operation:** `transcribe`\n- **API Key/Credential:** Your OpenAI account/API key\n- This node sends the downloaded audio file to Whisper (OpenAI) and returns the transcribed text.\n\n**5. Buffer Delay (Pre-AI Processing)**\n- **Node type:** `Wait`\n- **No parameters required** \n (Leave as default. This adds a small delay to ensure the transcription is fully complete before moving to the AI.)\n\n**6. Generate Email Content \u2013 AI AGENT**\n- **Node type:** AI Agent / Langchain\n- **Prompt type:** `define`\n- **Prompt (Text):** \n Use a custom prompt instructing the agent to:\n - Detect the recipient's email address (even partial, e.g. \"send to fort.baptiste.pro\", and complete if needed)\n - Understand user intent (resignation, request, excuse, etc.)\n - Generate a suitable email subject\n - Write a professional email in HTML (proper formatting, no spelling mistakes)\n - Example variable: \n ```\n {{ $json.text }}\n ```\n- **Model:** Connects to the `GPT-4 Email Generator Model` node (OpenAI Chat Model)\n- **Output Parser:** Connects to the `Enforce Email JSON Schema` node (Structured Output Parser)\n- **Credential:** Your OpenAI API key\n\n**7. GPT-4 Email Generator Model**\n- **Node type:** OpenAI Chat Model\n- **Model:** e.g. `gpt-4.1-mini` (as in your template)\n- **Credential:** Your OpenAI API key\n\n**8. Enforce Email JSON Schema**\n- **Node type:** Structured Output Parser\n- **JSON Example/Schema:** \n ```json\n {\n \"email\": \"adresse@gmail.com\",\n \"subject\": \"Objet de l\u2019email\",\n \"body\": \"<p>Contenu HTML de l\u2019email</p>\"\n }\n ```\n- This node ensures the AI returns exactly the required fields and format for email sending.\n\n**9. Send Email**\n- **Node type:** Gmail\n- **To:** `{{$json.output.email}}`\n- **Subject:** `{{$json.output.subject}}`\n- **HTML Body:** `{{$json.output.body}}`\n- **Credential:** Your Gmail OAuth2 credential\n- This node sends the generated email to the intended recipient using Gmail.\n"
},
"typeVersion": 1
},
{
"id": "0c0c9253-a953-47f9-bd79-0f1b70fd52a9",
"name": "Voice note",
"type": "n8n-nodes-base.telegramTrigger",
"position": [
-864,
1376
],
"parameters": {
"updates": [
"message"
],
"additionalFields": {}
},
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "23b5a633-58db-4c2a-a92c-a1a62ecf55f3",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
452.8740560292328
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a6aad9a1-79ba-47f3-902d-1ca31436610b",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-512,
464
],
"parameters": {
"width": 512,
"height": 528,
"content": "\n"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "64ed10ab-c989-493d-8854-e4090f254320",
"connections": {
"Voice note": {
"main": [
[
{
"node": "Buffer Delay (Pre-Processing)",
"type": "main",
"index": 0
}
]
]
},
"Enforce Email JSON Schema": {
"ai_outputParser": [
[
{
"node": "Generate Email Content AI AGENT",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"GPT-4 Email Generator Model": {
"ai_languageModel": [
[
{
"node": "Generate Email Content AI AGENT",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Download Telegram Voice File": {
"main": [
[
{
"node": "Transcribe Audio to Text (OpenAI Whisper)",
"type": "main",
"index": 0
}
]
]
},
"Buffer Delay (Pre-Processing)": {
"main": [
[
{
"node": "Download Telegram Voice File",
"type": "main",
"index": 0
}
]
]
},
"Generate Email Content AI AGENT": {
"main": [
[
{
"node": "Send Email",
"type": "main",
"index": 0
}
]
]
},
"Buffer Delay (Pre-AI Processing)": {
"main": [
[
{
"node": "Generate Email Content AI AGENT",
"type": "main",
"index": 0
}
]
]
},
"Transcribe Audio to Text (OpenAI Whisper)": {
"main": [
[
{
"node": "Buffer Delay (Pre-AI Processing)",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2openAiApitelegramApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Imagine: What if you could turn a simple Telegram voice message into a professional email—without typing, copying, pasting, or even opening Gmail?
Source: https://n8n.io/workflows/7041/ — original creator credit. Request a take-down →
Related workflows
Workflows that share integrations, category, or trigger type with this one. All free to copy and import.
Generate AI viral videos with NanoBanana & VEO3, shared on socials via Blotato 2. Uses @blotato/n8n-nodes-blotato, googleSheets, lmChatOpenAi, toolThink. Event-driven trigger; 94 nodes.
@Blotato/N8N Nodes Blotato, Google Sheets, OpenAI Chat +9
Digital marketers, content creators, social media managers, and businesses who want to use AI marketing automation for YouTube Shorts without spending hours on production. This AI workflow helps anyon
OpenAI, HTTP Request, OpenAI Chat +7
This template is designed for marketers, content creators, and e-commerce brands who want to automate the creation of professional ad videos at scale. It’s ideal for teams looking to generate consiste
Telegram, Telegram Trigger, Google Drive +8
Unlock the Power of Language with Personalized AI Learning! MOTION TUTOR is a revolutionary AI-powered language learning platform that adapts to your progress and guides you from basic vocabulary to c
Agent, Airtable Tool, OpenAI Chat +6
Automate your personal productivity with this intelligent n8n workflow that integrates Telegram, Google Sheets, and OpenAI (GPT-4o). This system uses multiple AI agents to manage work hours, tasks, fi
Agent, OpenAI Chat, Telegram +9