File Sender for Kindle EPUB

Couldn’t find any pertinent information on App Support. Been using this app with ZERO issues for a year? and it has always performed flawlessly. Until today. Tried reinstalling with no success. Advice?

That’s it. It’s supposed to send pdfs, at a MINUMUM, to your kindle. It not only doesn’t send the pdf to your kindle, but you’re limited to two attempts per day without paying a subscription price for pro. Not only that, but every email you send using this app also automatically includes the creators twitter handle, so he is using this app to shamelessly plug his social media. Garbage app, don’t waste your time.

The description says repeatedly that you can send any form of ebook/doc, but it actually has a restricted list. Can’t use it to send the .acsm file from Libby.