My company is no longer supporting our Linux mail server (all will be handled by gmail).
Over the years I’ve run many mail clients on the Linux server: elm, alpine, squirrelMail, roundCube. My most recent client has been RoundCube.
Ideally I’d like Thunderbird to import the most current folders from RoundCube; these appear to me to be inside Maildir/ (with deeper directories like .saved-mailed, etc). But I also have Mail/ (which alpine appears to reference).
But upon adding this account to Thunderbird, some mix of folders is presented to me: not all from Maildir/ and not all from Mail/…in fact no ‘new’ Roundcube folders are presented.
Where does Thunderbird search on a linux mail server to ‘subscribe’ folders? And how can I access this location to force the subscription of the folders I actually want?