{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/api-evangelist/mailboxlayer/blob/main/json-schema/mailboxlayer-check-result-schema.json",
  "title": "mailboxlayer Email Check Result",
  "description": "Successful response payload returned by GET /api/check after verifying a single email address.",
  "type": "object",
  "properties": {
    "email": {
      "type": "string",
      "format": "email",
      "description": "The email address submitted for verification."
    },
    "did_you_mean": {
      "type": "string",
      "description": "Suggested email address if a likely typo was detected, otherwise an empty string."
    },
    "user": {
      "type": "string",
      "description": "The local part (user) of the submitted email address."
    },
    "domain": {
      "type": "string",
      "description": "The domain part of the submitted email address."
    },
    "format_valid": {
      "type": "boolean",
      "description": "Whether the email address has valid syntax."
    },
    "mx_found": {
      "type": "boolean",
      "description": "Whether MX records exist for the domain."
    },
    "smtp_check": {
      "type": "boolean",
      "description": "Whether the real-time SMTP verification succeeded."
    },
    "catch_all": {
      "type": ["boolean", "null"],
      "description": "Whether the domain is configured as catch-all. Available on paid plans; may be null on Free."
    },
    "role": {
      "type": "boolean",
      "description": "Whether the address is a role-based address (e.g., support@, admin@)."
    },
    "disposable": {
      "type": "boolean",
      "description": "Whether the domain belongs to a disposable email provider (e.g., mailinator.com)."
    },
    "free": {
      "type": "boolean",
      "description": "Whether the domain belongs to a free email provider (e.g., gmail.com, yahoo.com)."
    },
    "score": {
      "type": "number",
      "minimum": 0,
      "maximum": 1,
      "description": "Numeric deliverability quality score from 0.0 to 1.0."
    }
  },
  "required": [
    "email",
    "user",
    "domain",
    "format_valid",
    "mx_found",
    "smtp_check",
    "role",
    "disposable",
    "free",
    "score"
  ],
  "additionalProperties": false
}