Get Mailbox Deliverability

{
  "success": true,
  "data": {
    "bounce_rate_percent": 1.85,
    "hard_bounces": 14,
    "soft_bounces": 9,
    "total_bounces": 23,
    "orphan_bounces": 2,
    "auto_reply_count": 31,
    "auto_reply_rate_percent": 2.5,
    "bounce_cause_breakdown": [
      {
        "cause": "mailbox full",
        "count": 34
      },
      {
        "cause": "user unknown",
        "count": 21
      },
      {
        "cause": "greylisted",
        "count": 12
      }
    ],
    "bounced_recipients": [
      {
        "recipient_email": "[email protected]",
        "bounce_count": 37,
        "hard_bounces": 14,
        "soft_bounces": 9,
        "last_bounce_timestamp": "2026-08-13T09:41:22Z"
      },
      {
        "recipient_email": "[email protected]",
        "bounce_count": 22,
        "hard_bounces": 8,
        "soft_bounces": 5,
        "last_bounce_timestamp": "2026-08-12T16:08:54Z"
      },
      {
        "recipient_email": "[email protected]",
        "bounce_count": 14,
        "hard_bounces": 5,
        "soft_bounces": 3,
        "last_bounce_timestamp": "2026-08-11T11:27:03Z"
      }
    ],
    "bounced_domains": [
      {
        "domain": "northwind.com",
        "total_bounces": 23,
        "hard_bounces": 14,
        "soft_bounces": 9
      },
      {
        "domain": "lumen.co",
        "total_bounces": 14,
        "hard_bounces": 8,
        "soft_bounces": 5
      },
      {
        "domain": "harborlabs.io",
        "total_bounces": 8,
        "hard_bounces": 5,
        "soft_bounces": 3
      }
    ],
    "spf_pass_rate": 0.998,
    "dkim_pass_rate": 0.981,
    "dmarc_pass_rate": 0.994
  }
}