It's a lost cause. I'm over a decade into the transition you are undertaking and I've basically just accepted that it will always be an account I can't get rid

It's a lost cause. I'm over a decade into the transition you are undertaking and I've basically just accepted that it will always be an account I can't get rid of - so I use it as a "you need my email address but I don't trust you" account. Nobody ever has any concern if you give them a gmail account. Over 50% of the email this account receives is for other people and frequently the "To:" field isn't even an exact match for my address! If you do start getting stuff that looks like it might cause you problems: be proactive. Do not wait around to embarrass some prosecutor. By that time, you've already spent thousands of dollars and had your reputation dragged through the mud. I once started getting legal threats meant for someone else. I had a lawyer call up that lawyer and it was cleared up in less than 10 minutes. Another time I started getting emails from/to a person with the same name as me at the State Department that definitely should not have been sent through a non-government server. I talked to someone I knew at the US Attorneys Office about it and those emails stopped immediately (doubt that guy still works there, LOL).