If I download e-mails from my account using a client like Thunderbird, can I just somehow copy them to a thumb drive and open them in whatever program later, without logging in to the account etc?
I want to delete my account, but need access to all my e-mails off.
Yes you can, but the exact process is lost on me as I haven’t used Thunderbird in ages. It should be able to export your mailboxes into a standard format (is it mbox?) or if it’s only a few specific emails you should be able to export them individually as
.emlfiles.