Thunderbird usually places all mail in a directory as a local backup, and the capacity of the directory will become more and more.
There is an option in thunderbird which could manage disk space, and you can delete your message, all, the recent.
Unfortunately, thunderbird warning this action will delete message, local and remote, permanently. It's very horrible, I just hope to delete local backup to save disk space.
Is it possible to have Thunderbird delete mail from the server but leave it on your local disk?
I want to delete local message according some options, and keep them in the remote server.
Help