My mailbox has just been shut down without notice by my internet provider, because the internet connection had been cancelled some time ago. There is no way I can access it now, the IMAP server refuses the connection.
I just created a Gmail account to use as my new email.
I have a copy of most of my emails on my laptop, in the Mail app. Is there a way I can transfer these old emails to my new mailbox?
I read that there are ways to do an IMAP-to-IMAP copy with third-party software such as Thunderbird, but this is not possible for me as I lost access to the old IMAP server. I hope there is a way to upload the local copy of my old emails to my new mailbox.