I have a simple php application that validates emails via SMTP request. Right now it works well but I need more speed. I'm trying to find a way to have this script work in parallel (or any other way) to gather more information at the same time WITHOUT CRASHING.
I am able to run 3 instances of the same file on my server but after a few minutes one instance dies, later the 2nd one and finally the 3rd one.
It doesn't seem like they are all working at the same time but rather one at a time for a few seconds.