0145 Manual Send Triggered

{
  "name": "0145 Manual Send Triggered",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        240,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "name": "Extract domain name",
      "type": "n8n-nodes-base.function",
      "position": [
        700,
        300
      ],
      "parameters": {
        "functionCode": "// Take email and extract the domain name \nvar email = ($json[\"email\"]);\nvar name   = email.substring(0, email.lastIndexOf(\"@\"));\nvar domain = email.substring(email.lastIndexOf(\"@\") +1);\n\n//To display the final domain name. (result)\n\nreturn [{\n  json: { domain }\n}]"
      },
      "typeVersion": 1
    },
    {
      "name": "Sample email",
      "type": "n8n-nodes-base.set",
      "position": [
        460,
        300
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "email",
     ...