I speak from experience that no one other than professionals should be handling their own mail servers in 2024. I worked for a mail host. The amount of spam and attacks that befall a mail provider, even a small one, is bonkers. Plus, mail is just too damn important.
I wish it wasn’t the case because the idea of everyone privately hosting their own mail servers would be pretty awesome. Sadly the modern internet makes it way too risky.
Most older games will have 2-3 engine loops that they will blend between and pitch accordingly, however Forza 5 specifically was the first in the series to use granular synthesis which is a much more modern approach.
These will have a series of sound files including all the different parts of the engine, exhaust, turbo, etc. Then the software slices these files into tons of pieces in real-time and plays the slices based on the players inputs.
It’s tricky to explain without examples, so here’s a video that does a decent job of explaining how it works in music: https://youtu.be/ftDLRYnRYZQ?si=SEHOl55K7rimi4Eu