Paul Abraham This workflow corresponds to n8n.io template #11758 — 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": "nLUMdYYEjggDRthb",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "{Template} Mirai MailFlow - Gumroad personalised autoreply copy",
"tags": [],
"nodes": [
{
"id": "f6bbafa7-a682-4714-9bd5-ca8f5e6d20fd",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
0,
0
],
"parameters": {
"filters": {
"q": "New sale of "
},
"pollTimes": {
"item": [
{
"mode": "everyHour"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
},
{
"id": "c8c48cc8-1b6a-4d53-a486-c4f30054deff",
"name": "Create a database page",
"type": "n8n-nodes-base.notion",
"position": [
1008,
-16
],
"parameters": {
"options": {},
"resource": "databasePage",
"databaseId": {
"__rl": true,
"mode": "list",
"value": "2c411b7d-dc06-80fc-87e9-db7d5c714c1e",
"cachedResultUrl": "https://www.notion.so/2c411b7ddc0680fc87e9db7d5c714c1e",
"cachedResultName": "Gumroad Leads"
},
"propertiesUi": {
"propertyValues": [
{
"key": "Name|title",
"title": "={{ $('Code in JavaScript').item.json.name }}"
},
{
"key": "email|rich_text",
"textContent": "={{ $('Code in JavaScript').item.json.email }}"
},
{
"key": "Product|rich_text",
"textContent": "={{ $('Code in JavaScript').item.json.product }}"
},
{
"key": "Purchase Date|rich_text",
"textContent": "={{ $('Code in JavaScript').item.json.purchaseDate }}"
},
{
"key": "Quantity|rich_text",
"textContent": "={{ $('Code in JavaScript').item.json.quantity }}"
},
{
"key": "UniqueKey|rich_text",
"textContent": "={{ $('Code in JavaScript').item.json.uniqueKey }}"
}
]
}
},
"credentials": {
"notionApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.2
},
{
"id": "a09a6310-d570-4e65-81aa-cc7ae72996d6",
"name": "Code in JavaScript",
"type": "n8n-nodes-base.code",
"position": [
240,
0
],
"parameters": {
"jsCode": "// Robust Gumroad email parser for n8n Code node\n// Normalise whitespace so fields that are on same line still parse correctly.\nconst raw = ($json.snippet || \"\");\nconst text = raw.replace(/\\s+/g, \" \").trim() + \" \"; // collapse whitespace and add trailing space\n\nfunction find(pattern, fallback = \"\") {\n const m = text.match(pattern);\n return m ? m[1].trim() : fallback;\n}\n\n// Product: words after $price until a dash, \"View\", \"Email\", \"Quantity\", or known keyword\nlet product = find(/\\$\\d+\\s+([A-Za-z0-9][A-Za-z0-9\\s\\-\\+&]*?)(?=\\s+(?:-|View|Email|Quantity|Product|Referrer|Name|UTM|$))/i);\nif (product) product = product.replace(/\\s+(?:Order|Product price)$/i, \"\").trim();\n\n// Name: accept Customer X Email, Name X next-keyword, Buyer X, or Name at end.\n// Works for multi-word names and when name is last field.\nlet name = \"\";\nconst namePatterns = [\n /Customer\\s+(.+?)(?=\\s+(?:Email|Quantity|UTM|Referrer|Product|Name|$))/i,\n /Name\\s+(.+?)(?=\\s+(?:Product|Email|Quantity|Referrer|UTM|$))/i,\n /Buyer\\s+(.+?)(?=\\s+(?:Email|Quantity|Referrer|Product|UTM|$))/i,\n];\nfor (const p of namePatterns) {\n const m = text.match(p);\n if (m && m[1]) { name = m[1].trim(); break; }\n}\n\n// Email, Quantity, Referrer (stop at next keyword)\nconst email = find(/Email\\s+([^\\s]+)/i);\nconst quantity = find(/Quantity\\s+(\\d+)/i);\nlet referrer = find(/Referrer\\s+(.+?)(?=\\s+(?:Name|Email|Quantity|Product|UTM|$))/i);\n\n// purchaseDate from Gmail internalDate if present\nlet purchaseDate = \"\";\nif ($json.internalDate) {\n purchaseDate = new Date(Number($json.internalDate)).toISOString();\n}\n\n// unique key: fallbacks to avoid undefined\nconst uniqueKey = `${email || \"no-email\"}-${product || \"no-product\"}-${purchaseDate || \"no-date\"}`;\n\nreturn [\n {\n json: {\n product: product || \"\",\n name: name || \"\",\n email: email || \"\",\n quantity: quantity || \"\",\n referrer: referrer || \"\",\n purchaseDate,\n uniqueKey\n }\n }\n];\n"
},
"typeVersion": 2
},
{
"id": "cf3b7bec-90ec-4861-956c-cf981792bad7",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1280,
-16
],
"parameters": {
"text": "=You are an email writing assistant. Write a short, warm, professional, and emotionally positive email to a customer who has just purchased one of my digital products on Gumroad.\n\nUse the following customer details:\n- Name: {{ $json.name }}\n- Product Purchased: {{ $json.property_product }}\n\nWrite the email as if it is coming directly from me (Paul). The tone should be:\n- friendly but professional\n- genuinely appreciative\n- concise (5\u20137 sentences max)\n- emotionally positive and reassuring\n- no unnecessary marketing fluff\n\nInclude:\n- a warm thank-you for their purchase from Gumroad \n- a sentence appreciating their trust \n- a brief one-line description of what the product helps with \n- reassurance that they can reach me anytime for help \n- a positive closing note wishing them success with the product \n\nDo NOT include subject lines unless I ask separately.\nReturn only the email body in clean paragraph form.",
"options": {},
"promptType": "define"
},
"typeVersion": 3
},
{
"id": "cc162afe-bcb7-472e-8bf1-f6927e3740e7",
"name": "Google Gemini Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
1280,
256
],
"parameters": {
"options": {}
},
"credentials": {
"googlePalmApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "8e9de348-c81b-4719-a4c7-f357638f5599",
"name": "Send a message",
"type": "n8n-nodes-base.gmail",
"position": [
1648,
-16
],
"parameters": {
"sendTo": "={{ $('Code in JavaScript').item.json.email }}",
"message": "={{ $json.output }}",
"options": {
"appendAttribution": false
},
"subject": "Thank you for supporting my work \u2764\ufe0f",
"emailType": "text"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "b6afd0bb-e744-49e1-abbb-06018be0d6e1",
"name": "If",
"type": "n8n-nodes-base.if",
"position": [
688,
0
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "41dd1ae9-c8bb-4e72-9148-3702cb72297f",
"operator": {
"type": "number",
"operation": "equals"
},
"leftValue": "={{ Object.keys($json).length }}",
"rightValue": 0
}
]
}
},
"typeVersion": 2.2
},
{
"id": "e49a189b-319f-4d44-afc4-1a4e346ca01a",
"name": "Stop and Error",
"type": "n8n-nodes-base.stopAndError",
"notes": "Error when duplictes is detected.",
"position": [
880,
240
],
"parameters": {
"errorMessage": "The Data already exsists"
},
"notesInFlow": true,
"typeVersion": 1
},
{
"id": "cbfb4691-8738-4fc7-b1c4-6d8359fdb6ce",
"name": "Get many database pages",
"type": "n8n-nodes-base.notion",
"position": [
464,
0
],
"parameters": {
"simple": false,
"filters": {
"conditions": [
{
"key": "UniqueKey|rich_text",
"condition": "equals",
"richTextValue": "={{ $json.uniqueKey }}"
}
]
},
"options": {},
"resource": "databasePage",
"operation": "getAll",
"databaseId": {
"__rl": true,
"mode": "list",
"value": "2c411b7d-dc06-80fc-87e9-db7d5c714c1e",
"cachedResultUrl": "https://www.notion.so/2c411b7ddc0680fc87e9db7d5c714c1e",
"cachedResultName": "Gumroad Leads"
},
"filterType": "manual"
},
"credentials": {
"notionApi": {
"name": "<your credential>"
}
},
"notesInFlow": false,
"typeVersion": 2.2,
"alwaysOutputData": true
},
{
"id": "f07a92a1-f032-490d-be55-19b6fadb4bdd",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-64,
-336
],
"parameters": {
"color": 7,
"width": 432,
"height": 512,
"content": "## Request Authentication\nListens for Gumroad purchase emails and extracts buyer and product information.\n\n### Action Required\nAuthenticate Gmail\nEnsure Gumroad purchase emails are received in this inbox"
},
"typeVersion": 1
},
{
"id": "59bc2cc5-a46e-481c-9130-08624ef95410",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
400,
-336
],
"parameters": {
"color": 7,
"width": 432,
"height": 512,
"content": "## Customer Lookup\n\nChecks the Notion database for existing customers and stops execution if a duplicate is found.\n\n## Action Required\n- Connect your Notion account\n- Select the correct customer database\n"
},
"typeVersion": 1
},
{
"id": "9d46503d-783a-4359-ad67-130673589713",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1248,
-336
],
"parameters": {
"color": 7,
"width": 544,
"height": 512,
"content": "## AI Reply & Delivery\nGenerates a personalized thank-you email using AI and sends it to the buyer automatically.\n\n### Outcome\n- Instant post-purchase engagement\n- Professional buyer experience\n- Fully automated workflow completion"
},
"typeVersion": 1
},
{
"id": "1639dd58-ddcd-4734-b0da-86a92104b461",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
880,
-336
],
"parameters": {
"color": 7,
"width": 288,
"height": 512,
"content": "## Create Customer Record\n\nCreates a new customer record in Notion for first-time buyers.\n\n### What it stores:\n- Buyer details\n- Product purchased\n- Purchase value\n- Timestamp"
},
"typeVersion": 1
},
{
"id": "b1493b9a-309f-4859-94cb-48c50b970f42",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
-912,
-240
],
"parameters": {
"width": 576,
"height": 320,
"content": "# Mirai MailFlow\nThis workflow automates post-purchase communication for Gumroad creators.\n\nWhen a Gumroad purchase email arrives in Gmail, the workflow extracts buyer and product details, checks for duplicate customers, stores the purchase in Notion, and sends a personalized thank-you email using AI.\n\nSetup requires connecting Gmail, Notion, and an AI model.\nWorks on cloud and self-hosted n8n. Setup takes ~5\u201310 minutes."
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "9eaa6b02-7bb3-4810-89a2-9b377ae87c7e",
"connections": {
"If": {
"main": [
[
{
"node": "Create a database page",
"type": "main",
"index": 0
}
],
[
{
"node": "Stop and Error",
"type": "main",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "Send a message",
"type": "main",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "Code in JavaScript",
"type": "main",
"index": 0
}
]
]
},
"Send a message": {
"main": [
[]
]
},
"Code in JavaScript": {
"main": [
[
{
"node": "Get many database pages",
"type": "main",
"index": 0
}
]
]
},
"Create a database page": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Get many database pages": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"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.
gmailOAuth2googlePalmApinotionApi
Pro
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About this workflow
This n8n template automates post-purchase communication for Gumroad creators by sending AI-powered personalized thank-you emails and logging customer data into Notion. It helps creators engage buyers instantly while keeping a clean customer CRM — fully hands-free.
Source: https://n8n.io/workflows/11758/ — original creator credit. Request a take-down →
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