Get inbound domains

curl --request GET \
  --url https://api.jetemail.com/inbound/domains \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "result": [
    {
      "domain": "example.com",
      "nexthop": "mail.internal-server.com:587",
      "status": "active",
      "uuid": "550e8400-e29b-41d4-a716-446655440000",
      "last_modified": 1735937552
    }
  ]
}