I just have all my emails since 1997 in my current email account. Every time I've changed providers, I've copied the old emails over to the new one as they've a

I just have all my emails since 1997 in my current email account. Every time I've changed providers, I've copied the old emails over to the new one as they've all had some POP3 functionality for import. I do still have my first email account from 1997 too, but it was an early free email service that got acquired by Yahoo so I was hit by this same Yahoo deletion policy at some point. Which didn't really matter as I had everything copied over to the next one anyway.