Without even looking at the email address I would have been suspicious and all over that. There is a multitude of spelling and grammar issues in his mail, the ToS is horrible, and if that were the "#1 Escrow" service, their email would have looked a lot more professional than that. [This is usually always the very first thing I pick up on, anyone who has ever tried to scam me by pretending to be someone/something they weren't, end up blowing their cover due to numerous grammatical errors. A legit reputable business or even lone businessman would never let that slide)  Even if you notice just one error in a communication sent to you, like a word has a duplicated letter, stlll investigate. Generally, a business strives to be flawless, a scammer does not...

Strange though that it didn't warn you on your desktop, because I only use the webmail version and it always alerts me to suspicious things such as that.  (Unless you are using a 3rd-party mail client on your desktop and not Gmail, in that case, thank gosh for Gmail  👍🏻).

Regardless, great catch and good job to Google too!

Edit: I meant to also laugh at how perfect it is that the scammer's true address is monbux.bit'con'talk@gmail
lmao  😆😆