I too still have my emails starting from the 90s. I've always copied them on the provider side when migrating my email to a new account (4 or 5 times now in tot

I too still have my emails starting from the 90s. I've always copied them on the provider side when migrating my email to a new account (4 or 5 times now in total). First mailbox was 5MB, others after that were always generous enough that I could easily just keep all my emails.