[Hiporor]

Hello. There is, of course, a more complex and longer option - you can calculate it manually each time. But I am sure that you do not enjoy doing it every time, otherwise you would not be asking such a question. A simple Python script can be written to collect statistics and analyze data. This programming language is generally useful in any process automation. If you do not have programmers at your company and you do not plan to expand your staff, then the best way out for you would be to python programmers for hire https://develux.com/hire-python-developers through an outsourcing company. They will help you not only in counting incoming emails, but will also be able to automate other business processes.