Hi, how are people doing that mass mailing from dozens of fake accounts on orders?

Hi, how are people doing that mass mailing from dozens of fake accounts on orders?

Is there any program for this?

I am collecting their accounts parser, but I need a program that will send messages to them from different accounts and a website where I will buy them.

There are programs, but this is all imaginary reliability. There are also people who do this for an additional fee. Such a way of promotion, not the best one.