Based on my personal experience, id say gmail, you only need a domain I used namecheap without any issue. You register with that on google, some settings you set on namecheap , it guides you all the way then you pay the lowest monthly fee, I pay 5.20 euros per month for my company’s mail.
You set up a main email then you can setup any number of aliases for yourself I think, you can also create group emails and assign yourself to it
Well any species would be a product of their environment but I think the logic that bipedals with arm like appendages would dominate the world isnt far fetched.
And as you say they would likely not have unneccessary stuff like 3rd eye or 2 sets of arms since evolution is basically the system of good enough anything above that is a waste
So something might start out with 3 eyes but would eventually lose it as standing up and bejng able turn around is good enough to survive and propagate