When I download an attachment (“download complete message”) it’s apparently saved in K-9 Mail’s private storage. I “save” this attachment to my SD card and no longer need it in K-9 but it stays there and hogs internal storage space. I’ve got a couple GB used up by pictures and such, of which I already have copies on the phone.
Is there another way of clearing this memory aside from deleting the e-mails or reinstalling K-9? I’d prefer to keep the emails with which the attachments came.