Maybe I'm wrong, but I'd assumed that converting a Mbox file on my drive to IMAP format won't then initiate a sync with the related Gmail account to which the Thunderbird account is linked?
By doing it manually it's forcing a sync with google, so I have a "backup" off my disk.
It's one of the cases where the time taken to find a better solution would probably take just as long...
Many better things to do ;-)
Maybe I'm wrong, but I'd assumed that converting a Mbox file on my drive to IMAP format won't then initiate a sync with the related Gmail account to which the Thunderbird account is linked?
By doing it manually it's forcing a sync with google, so I have a "backup" off my disk.
It's one of the cases where the time taken to find a better solution would probably take just as long...