I am using Calibre 8.0.1 and I'm trying to email ebooks from the calibre library on my MacBook Air to kindle, not directly from Calibre itself.
First, I converted the files to ePUB in Calibre. Then, I verified that my kindle email address was correct and that my personal email address is on my accepted senders on Amazon.
Amazon did not accept the files due to unsupported format. The error message is: E001 - Unsupported File Format:
* smime.p7s
I spoke to a Amazon customer service rep and he said that the error message referred to a digital signature on the original file.
I had this problem with both open source books and books I stripped the DRM off many years ago.
Does anyone know how I can format the books so Amazon accepts them?
First, I converted the files to ePUB in Calibre. Then, I verified that my kindle email address was correct and that my personal email address is on my accepted senders on Amazon.
Amazon did not accept the files due to unsupported format. The error message is: E001 - Unsupported File Format:
* smime.p7s
I spoke to a Amazon customer service rep and he said that the error message referred to a digital signature on the original file.
I had this problem with both open source books and books I stripped the DRM off many years ago.
Does anyone know how I can format the books so Amazon accepts them?