Email Send Reply API

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 →

{
  "name": "Email Send Reply API",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "url": "",
        "path": "/api/send-reply",
        "responseMode": "responseNode",
        "options": {}
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2.1,
      "position": [
        0,
        0
      ],
      "id": "e91bfea2-ceaf-430f-a12f-d21311175602",
      "name": "Webhook"
    },
    {
      "parameters": {
        "jsCode": "// Validation des donn\u00e9es de r\u00e9ponse email\nconst requestBody = $json.body;\n\n// V\u00e9rifier champs obligatoires\nif (!requestBody.to || !requestBody.subject || !requestBody.message) {\n  return [{\n    json: {\n      error: true,\n      message: \"Champs manquants: to, subject et message sont requis\",\n      received: requestBody\n    }\n  }];\n}\n\n// Validation email basique\nconst emailRegex = /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/;\nif (!emailRegex.test(requestBody.to)) {\n  return [{\n    json: {\n      error: true,\n      message: \"Adresse email invalide\"\n    }\n  }];\n}\n\n// Retourner donn\u00e9es valid\u00e9es\nreturn [{\n  json: {\n    to: requestBody.to,\n    subject: requestBody.subject,\n    message: requestBody.message,\n    validatedAt: new Date().toISOString()\n  }\n}];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        208,
        0
      ],
      "id": "e7251bc6-d44d-4cc4-bfe2-57f4c44cf41b",
      "name": "Code in JavaScript"
    },
    {
      "parameters": {
        "sendTo": "={{ $json.to }}",
        "subject": "={{ $json.subject }}",
        "message": "={{ $json.message }}",
        "options": {}
      },
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 2.1,
      "position": [
        416,
        0
      ],
      "id": "1ff79ccf-9207-48dc-902b-c775494b12e9",
      "name": "Send a message",
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "{{ JSON.stringify({\n  success: true,\n  message: \"Email envoy\u00e9 avec succ\u00e8s\",\n  data: $json\n}, null, 2) }}",
        "options": {}
      },
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.4,
      "position": [
        624,
        0
      ],
      "id": "197d888f-e546-4c8f-b1f0-4782aaf40535",
      "name": "Respond to Webhook"
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Code in JavaScript",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code in JavaScript": {
      "main": [
        [
          {
            "node": "Send a message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Send a message": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1",
    "callerPolicy": "workflowsFromSameOwner"
  },
  "versionId": "a8d8c09d-b693-49e0-9ae6-c8c40b3b9539",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "ofycxrnFAf7GdEDq",
  "tags": []
}

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.

• gmailOAuth2

About this workflow

Email Send Reply API. Uses gmail. Webhook trigger; 4 nodes.

Source: https://github.com/devakowakou/n8n-email-workflow/blob/01e7bc6edffc44aee64258baece86b31e68d56a0/n8n-workflows/send-reply-workflow.json — original creator credit. Request a take-down →

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