This is a fairly new thing and for me has worked smoothly. I can attach a bunch of DRM-free epubs to an email addressed to my Kindle account, Amazon asks for co

This is a fairly new thing and for me has worked smoothly. I can attach a bunch of DRM-free epubs to an email addressed to my Kindle account, Amazon asks for confirmation that it's me sending them, and within about five minutes I have clean, well-formatted copies of those files on my Paperwhite.