A long time ago I started using Mac Mail instead of my web-based Yahoo email. Then I deleted all my emails from my web-based Yahoo account and kept them on Mac Mail. Now that I've stopped using Mac Mail and I'm back to using web-based Yahoo, I want to know if there's any way I can restore/forward these offline emails stored on my Mac Mail back into Yahoo. There are a lot of emails, so forwarding one by one is not an option.
Someone help?
Thank you!!