[
  {
    "blacklist": "Spamhaus",
    "founded": 1998,
    "coverage": "3+ billion mailboxes",
    "detection_method": "Spam traps, honeypots, partners",
    "listing_time": "Minutes to hours",
    "delisting_time": "24-72h (manual)",
    "false_positive_rate": "Very low",
    "gmail_impact": "Critical",
    "outlook_impact": "Critical",
    "yahoo_impact": "Critical",
    "api_available": "Paid (DQS)",
    "dnsbl_cost": "Free",
    "delisting_url": "https://www.spamhaus.org/lookup/",
    "priority": 1,
    "lists": ["ZEN", "SBL", "XBL", "PBL", "CSS", "DBL"]
  },
  {
    "blacklist": "Barracuda BRBL",
    "founded": 2008,
    "coverage": "Barracuda clients + public",
    "detection_method": "Appliances, Machine Learning",
    "listing_time": "Hours",
    "delisting_time": "12-24h (semi-auto)",
    "false_positive_rate": "Low",
    "gmail_impact": "Moderate",
    "outlook_impact": "High",
    "yahoo_impact": "Moderate",
    "api_available": "Free (lookup)",
    "dnsbl_cost": "Free",
    "delisting_url": "https://www.barracudacentral.org/lookups/lookup-reputation",
    "priority": 2,
    "lists": ["BRBL"]
  },
  {
    "blacklist": "SpamCop",
    "founded": 1998,
    "coverage": "Active users",
    "detection_method": "User reports",
    "listing_time": "Minutes",
    "delisting_time": "24-48h (automatic)",
    "false_positive_rate": "Moderate",
    "gmail_impact": "Low",
    "outlook_impact": "Low",
    "yahoo_impact": "Low",
    "api_available": "No",
    "dnsbl_cost": "Free",
    "delisting_url": "Auto-delisting (24-48h without new reports)",
    "priority": 3,
    "lists": ["BL"]
  }
]