Dear learned brethren,
Had a doubt regarding Calibre..... If I am using the wifi service on Kindle to get the downloads of periodicals and newspapers from Calibre, do I need to keep Calibre running????

OR
Is it so that Calibre server would download the periodicals as selected by me and then using my gmail id send them to kindle free email id which would then send it to me on the wi-fi network to my Kindle???
Sorry if I have asked something totally out of the loop here.

Regards

Manish