On Monday, 31 July 2023 17:25:20 BST Peter Humphrey wrote: > On Monday, 31 July 2023 17:03:49 BST Peter Humphrey wrote: > > I already have it set up, so I hope I'd only have to deselect "Download > > all > > messages for offline use" and then drag the locally stored emails to the > > IMAP Account, which is shown at the top of the folder list, attached. > > Does that create a copy of the local directory structure? > > Hah! I just tried the folder-move function in KMail, and it crashed. 79 > emails and 2.2MB.
I have used Kmail to download large-ish IMAP folders (4000+ messages and ~800MB) to local folders, then upload them to different remote IMAP account/ folder. It has worked reliably here and ought to work in your case too, if: - Your Internet connectivity is stable and the bandwidth is > than dial up, or you work locally with dovecot. - You create the local/remote Kmail folders first and then copy messages over in small numbers. About 50-100 at a time should do it, depending on size of attachments. - You remain patient until the messages have downloaded, but then you really remain patient until akonadi finishes indexing them. This may take longer than you wish.[1] - Do not start with another folder, until the current folder migration has completed successfully and you can verify the content of at least a sample of messages has landed where you expect it to be. [1] Sometimes synchronising a large number of messages/folders will appear to be stuck, because Kmail won't display it. A workaround I use is to close Kmail and run in a terminal: akonadictl fsck akonadictl vacuum waiting for each command to finish, before I restart Kmail. This is not a regular occurrence, but when Kmail misbehaves the above forces a sync so the next batch of emails can be copied over. HTH.
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