Hello all - butting into the conversation with a different issue. If this doesn't belong here please let me know:
Recently migrated my library over to linuxserver calibre and have had no issues accessing it/installing. Where I'm running into problems is in emailing books. Whenever I email an ebook, the filename gets changed to a random string of letters/numbers (ex: "The High Performance HMI Handbook.epub" becomes "pP2K6OsDdr7hhS523zeDw9.epub"). This causes issues as a Kindle device will then use the random letters/numbers as the display title (I don't know why they don't just use the metadata...).
On calibre instances installed on my laptop with similar setup I have no issues with this. I also do not have any metadata plugboards setup that would alter the info. Sending via gmai imap.
I could not find any topics/instances of this on the calibre support page so I turned here for a possible solution. Any help/ideas is appreciated!
edit: Forgot to mention that every time an email is sent (of same file), the sent filename is a completely different string of letters/numbers, it is not consistent.