POST api/PostMail

[
  {
    "$id": "2",
    "idMail": "375a37b4-4d78-49c5-8464-061ea9005e1c",
    "mail1": "sample string 2",
    "idTipoMail": "c001e857-a0d8-4210-812a-29094711b0eb",
    "Contacto": {
      "$id": "3",
      "$values": [
        {
          "$id": "4",
          "idContacto": "ed09ec49-e839-4d0c-a040-76d8f47216cf",
          "Paterno": "sample string 2",
          "Materno": "sample string 3",
          "Nombre": "sample string 4",
          "Telefono": {
            "$id": "5",
            "$values": [
              {
                "$id": "6",
                "idTelefono": "f2c7780a-a634-4934-9469-7ae02557c240",
                "idTipoTelefono": "927b1856-ecbb-40b6-9078-618a21a483d5",
                "numTelefono": "sample string 3",
                "numExtension": "sample string 4",
                "TipoTelefono": {
                  "$id": "7",
                  "idTipoTelefono": "9d532f89-eddd-4312-927c-71373005b7f0",
                  "nomTipoTelefono": "sample string 2",
                  "Telefono": {
                    "$id": "8",
                    "$values": [
                      {
                        "$ref": "6"
                      },
                      {
                        "$ref": "6"
                      }
                    ]
                  }
                },
                "Contacto": {
                  "$id": "9",
                  "$values": [
                    {
                      "$ref": "4"
                    },
                    {
                      "$ref": "4"
                    }
                  ]
                }
              },
              {
                "$ref": "6"
              }
            ]
          },
          "Mail": {
            "$id": "10",
            "$values": [
              {
                "$ref": "2"
              },
              {
                "$ref": "2"
              }
            ]
          }
        },
        {
          "$ref": "4"
        }
      ]
    },
    "TipoMail": {
      "$id": "11",
      "idTipoMail": "f62922f1-6045-4554-b1e2-c8bfc0c46fc6",
      "nomTipoMail": "sample string 2",
      "Mail": {
        "$id": "12",
        "$values": [
          {
            "$ref": "2"
          },
          {
            "$ref": "2"
          }
        ]
      }
    }
  },
  {
    "$ref": "2"
  }
]

Sample not available.