I've used my own domain with the email service of yandex.com. Now I want to migrate to another email service provider. I've chosen zoho.
1) How can I copy all my email from yandex to zoho? Or general, how can I copy all my email from a email service A to email service B?
2) I'm concerned about privacy and I'd like not to store my email on a server anymore and I'd better store them locally. At the same time it's vital for me to be able to access my email from a laptop and phone and tablet. So should I keep using IMAP?