curl --request GET \
  --url https://mail-service.iran.liara.ir/api/v1/mails/{mailServerID}/counts \
  --header 'Authorization: <api-key>'

{
  "status": "<string>",
  "data": {
    "emailPerDay": [
      {
        "count": 123,
        "date": 123
      }
    ]
  }
}