Thunderbird 社群討論區

I need to use the offline MBOX folders of several email accounts that I access via IMAP to migrate the contents to a new provider. There are no files in my Thunderbird profile directory tree with the extension .MBOX (under Windows 11) but I have some fairly large files of the form: <Thunderbird profile>\ImapMail\<IMAP server>\INBOX and <Thunderbird profile>\ImapMail\<IMAP server>\Sent are these the MBOX files? Can I safely ignore the .msf files? A further problem is that I have more than one account on the same server, but the second account only appears as: <Thunderbird profile>\ImapMail\<IMAP server>-1\INBOX and <Thunderbird profile>\ImapMail\<IMAP server>-1\Sent How can I identify the corresponding e-mail accounts?

Hi,

I wanted Thunderbird to stop downloading messages from an old gmail account, but wanted to keep a kind of archive, so what I did was dragged all the account folders (Inbox, Sent, Trash) to Local Folders so that I can continue to reference downloaded emails (the account was using POP, not IMAP).

I'm on Windows 11. Inbox file is basically the same size as it used to be (just now in Local Folders) but Sent, Trash, other subfolders have all almost exactly doubled in filesize compared to what they were before I dragged (moved) the folders to Local Folders. I don't think there are doubles of messages when I look in Local Folders or anything.

Any ideas why the double filesizes? All the .msf filesizes are like, 15% smaller for some reason.

Thanks.