Script logging. How right?

Question

PHP

Hello.
There is a mail server.
Someone sends spam from him.
I want to catch the villain through script logging.
I found an article on the Internet https://romantelychko.com/blog/958/
But there are problems here.
1. There is no php.ini in the folder specified in the instructions. That is, it needs to be created or can it be used which is specified in the apach2 folder (because phpinfo() shows the main php.ini is specified in this folder)? ( prntscr.com/8s0cii /etc/php5/ folder structure)
2. no file /var/log/php.mail.log Is it missing because I don't have the right item or do I need to create it?
Guys, tell me please??

Answer 1

if the sending is done using php, then in the execution of the function, you can add logging to a file or to the database