We desperately need to overhaul how the average mail provider works. We need unique email addresses every time we sign up for an account that can then be disabled. I do this with fastmail though it's a little annoying to spend 20 seconds to create a new alias every time. At last count I had something like 470 aliases. Probably at least 40 disabled ones after receiving emails I didn't opt in for, or I disabled immediately after the first use because I had no need for further communication with that organization.