Aura HD Downloading books as gmail attchments

Good morning. Brand new owner of Aura HD here. Apologies if this has been addressed elsewhere, but my search yielded nothing. My question is if I could e-mail myself an epub to my gmail account and then import it into my library via the browser. Tried it but no luck, so I wonder if there is a known trick or tweak to accomplish this. Downloading from Google Drive does not seem to work either.

Thank you in advance for your help.

Edit: I just realized this thread may be in the wrong sub-forum. Please accept my apologies and move to the correct forum if necessary.