[Enhancement]: Set a Primary Ebook file format for all ebooks #1914

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opened 2026-02-20 10:13:56 -05:00 by deekerman · 0 comments

deekerman commented

2026-02-20 10:13:56 -05:00

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Originally created by @HStep20 on GitHub (Apr 26, 2024).

Describe the feature/enhancement

I recently set up the Email settings to move Email to Kindle for some users, but Im having a bit of an issue when it comes to the 'primary ebook'. Because I manage my ebooks with Calibre (and use a Kobo myself with the calibre-web sync), most ebooks I have are in multiple formats and it doesn't always send the 'epub' - even though thats the supported format for Email-To-Kindle.

In order to better facilitate the Email-To-Kindle feature, it'd be great if there were a way to ease the pain of it sending the wrong file type because EPUB isnt set as the Primary Ebook File Format. A couple ideas I have could be:

Option to ignore ebooks with certain extensions (or only scan certain extensions) in the library settings
The Email-To-Kindle option only ever sends the epub if its available, and displays an error message if its not (since I don't think it has tools to convert stuff between file formats)
A tool to set all ebooks Primary Format to a selected option (ideally schedulable so new books are automatically updated to the same primary format when they are added)

Originally created by @HStep20 on GitHub (Apr 26, 2024). ### Describe the feature/enhancement I recently set up the Email settings to move Email to Kindle for some users, but Im having a bit of an issue when it comes to the 'primary ebook'. Because I manage my ebooks with Calibre (and use a Kobo myself with the calibre-web sync), most ebooks I have are in multiple formats and it doesn't always send the 'epub' - even though thats the supported format for Email-To-Kindle. In order to better facilitate the Email-To-Kindle feature, it'd be great if there were a way to ease the pain of it sending the wrong file type because EPUB isnt set as the Primary Ebook File Format. A couple ideas I have could be: 1. Option to ignore ebooks with certain extensions (or only scan certain extensions) in the library settings 2. The Email-To-Kindle option only ever sends the epub if its available, and displays an error message if its not (since I don't think it has tools to convert stuff between file formats) 3. A tool to set all ebooks Primary Format to a selected option (ideally schedulable so new books are automatically updated to the same primary format when they are added)