Send a bot mail but make it non-spam

https://mytool.gq/botmail/
Something i'm working on is sending an email on someone but it will look like someone else sent it.
But it goes on spam, I think because of the domain? Or something else? Try it.

That the letter did not get to spam it is necessary that on a sender's domain DKIM and SPF were configured. Because If you allow you to enter any sender email, then DKIM and SPF are not configured for him accordingly.