I have several email accounts in Thunderbird where the email address no longer exists, at least on the specified IMAP server. Thunderbird is configured to not attempt aut… (emoñe’ẽve)
I have several email accounts in Thunderbird where the email address no longer exists, at least on the specified IMAP server. Thunderbird is configured to not attempt automatically getting mail for these.
I had used Thunderbird 102 on Windows 10 for years, and in that version, my mail was kept in Thunderbird for those accounts (though whenever I opened any folder in them, I was somewhat annoyingly prompted to enter my credentials since the connection to the server was failing). To copy my profile folder to a new Linux installation, I updated Thunderbird to 153.5.1esr, the same version running on Linux, as Flatpak. My mail is still kept in Thunderbird on Windows, but with the same profile on Linux, Thunderbird "hid" all folders from the offline email accounts (apart from an "Inbox" folder that is shown as empty): the files are still there in the profile directory, and Thunderbird seems to find relevant emails in search, but opening them leads to a "No mail found" screen, and there is no way to access this mail from the folder pane. How can I make Thunderbird see my mail again?
As if that was not enough, on a whim I decided to attempt the "Repair folder" option on my Windows instance of Thunderbird, where the folders were still being shown normally. I immediately regretted not having made a backup of my profile (I only have one from version 102, where the data was apparently stored rather differently), since this just deleted all mail in the selected folder entirely, with the relevant file in the profile directory being empty. (The file seems to be somewhat different on Linux too, since copying it back to the Windows profile did not restore the mail in Thunderbird, and I would probably have to copy my Thunderbird 102 backup into an install of Thunderbird 102 and manually upgrade to my/the newest version to get it back.)
I know local folders would never be deleted like this, but there does not even seem to be an option to move an entire mailbox into a local folder, other than manually. It does not appear like Thunderbird has proper support for mailboxes that are no longer available. It would be undesirable to have all my mail in some new mailbox lost in the same way after I lose access to it. (Local folders would not really help in this situation either, unless you plan out exactly when your mailbox goes offline.)