The Intercept, using the Freedom of Information Act, has found Elon Musk's government email address. TCinLA has a recommendation: "Let This Federal Employee Know What You Think. [Elon] has been assigned the email address erm71@who.eop.gov. TCinLA STRONGLY SUGGESTS YOU BE SHORT AND TO THE POINT, SINCE HE'S A BUSY, BUSY BOY. STRIVE FOR CLARITY [emphasis added]."

https://tcinla757.substack.com/p/poking-around-on-day-44