Mail.ru: api.icq.com / отсутсвие лимита на отправку сообщений удаляя параметр защиты "&r"

Researcher reported removing r= parameter from request allows to bypass rate limits. This claim was not confirmed, r= paramter protects message from intermediate caching and prevents sending the same message twice in the case of network failure, it does not affect any ratelimits, no security...