I had the same problem too. Many years ago in December the final weeks when businesses are slow, I painstakingly went through and edited every single one of my accounts one at a time and changed emails. If there was a legacy thing I couldn’t access or a system that wouldn’t let you change your email, then I discarded it. How do you eat a dinosaur? One bite at a time.

Through my investment in time, all my accounts are managed via the method I commented above. I own my email, and I control how I get contacted.