Hi,
I'm converting ePub Books to azw3 with Calibre for my Kindle O2.
Everything is fine if the Kindle is connected via USB and Calibre transfers the book to the main memory. If the book is copied manually to the documents directory there's no cover.
What I really want is to be able to convert and access the converted book remotely. As it's not possible to send the awz3 format to the kindle via email I'm using calibre's webserver and download the book with the browser on my kindle. This works but again without cover.
So Calibre does some magic to the kindle when it's connected

Is there a way to get the book an the kindle without the need to connect it via usb and transfer it with calibre?