{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.emailonacid.com/v5/schemas/email-test-request",
  "title": "CreateEmailTestRequest",
  "description": "Request body schema for creating an email rendering test across email clients",
  "type": "object",
  "required": ["subject"],
  "properties": {
    "subject": {
      "type": "string",
      "description": "Email subject line"
    },
    "html": {
      "type": "string",
      "description": "HTML email content. Required if url is not provided."
    },
    "url": {
      "type": "string",
      "format": "uri",
      "description": "URL to email content. Required if html is not provided."
    },
    "transfer_encoding": {
      "type": "string",
      "enum": ["base64", "quoted-printable", "7bit", "8bit"],
      "default": "8bit",
      "description": "Content transfer encoding"
    },
    "charset": {
      "type": "string",
      "default": "utf-8",
      "description": "Character encoding of the email content"
    },
    "free_test": {
      "type": "boolean",
      "default": false,
      "description": "Use limited free test features"
    },
    "sandbox": {
      "type": "boolean",
      "default": false,
      "description": "Sandbox mode — no content created, used for testing API integration"
    },
    "reference_id": {
      "type": "string",
      "description": "Enterprise tracking reference identifier"
    },
    "customer_id": {
      "type": "string",
      "description": "Enterprise customer identifier, required for enterprise packages"
    },
    "headers": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      },
      "description": "Custom X-Header key-value pairs (enterprise only)"
    },
    "clients": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Email client IDs to test against. Defaults to account default list if not specified."
    },
    "image_blocking": {
      "type": "boolean",
      "default": false,
      "description": "Block images in supported clients during rendering"
    },
    "spam": {
      "type": "object",
      "description": "Spam test configuration to run alongside email rendering",
      "properties": {
        "test_method": {
          "type": "string",
          "enum": ["eoa", "smtp", "seed"],
          "default": "eoa",
          "description": "Method for spam testing"
        },
        "from_address": {
          "type": "string",
          "format": "email",
          "description": "Sender email address for spam testing"
        },
        "key": {
          "type": "string",
          "description": "Pre-reserved seedlist key (optional for seed method)"
        },
        "smtp_info": {
          "type": "object",
          "description": "SMTP configuration, required when test_method is smtp",
          "required": ["host"],
          "properties": {
            "host": {
              "type": "string",
              "description": "SMTP server hostname"
            },
            "port": {
              "type": "integer",
              "default": 25,
              "description": "SMTP port number"
            },
            "secure": {
              "type": "string",
              "enum": ["ssl", "tls", ""],
              "default": "",
              "description": "Connection security type"
            },
            "username": {
              "type": "string",
              "description": "SMTP authentication username"
            },
            "password": {
              "type": "string",
              "description": "SMTP authentication password"
            }
          }
        }
      }
    }
  },
  "oneOf": [
    { "required": ["html"] },
    { "required": ["url"] }
  ]
}