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            "mail": 95,
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            "availability": 60
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                "category": "dns",
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                "category": "dns",
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                "category": "dns",
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                "detail": "Agreement between public resolvers."
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            {
                "category": "mail",
                "title": "MX records",
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                "earned_points": 20,
                "lost_points": 0,
                "detail": "1 MX record(s)."
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                "category": "mail",
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                "detail": "SPF policy published."
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                "category": "mail",
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                "detail": "DMARC policy published."
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                "category": "mail",
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                "lost_points": 0,
                "detail": "TLS reporting policy."
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                "category": "security",
                "title": "Valid TLS certificate",
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                "category": "security",
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            },
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                "title": "DKIM",
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                "earned_points": 20,
                "lost_points": 0
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            {
                "level": "error",
                "title": "MTA-STS",
                "detail": "Mail transport policy.",
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                "level": "ok",
                "title": "Valid TLS certificate",
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                "level": "ok",
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                "category": "security",
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                "lost_points": 0
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                "level": "ok",
                "title": "HTTP security headers",
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                "category": "security",
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                "title": "PTR reverse DNS",
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