Books sent via e-mail by Calibre do not appear on my Kindle
Since about two weeks I have the following problem with Calibre and my Kindle Oasis 2:
Books sent via e-mail by Calibre do not appear on my Kindle. When I connect the Kindle and send directly the book appears at once.
The sending of books via e-mail did work in the past.
I have the correct e-mail-address of the Kindle and Calibre is configured OK for sending books.
What causes this problem?
How can it be solved?
Best, Adrian
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