Thanks for your answer, I missed this bug. Mine is exactly the same, and the proposed workaround did the trick. Closing this one.
** Changed in: libreoffice (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libreoffice in Ubuntu. https://bugs.launchpad.net/bugs/1907994 Title: Libreoffice's "send file/pdf per email" doesn't attach file Status in libreoffice package in Ubuntu: Invalid Bug description: On a fresh Ubuntu 20.04 install + all package upgrades as of now, using thunderbird as email client, the libreoffice's "send file/pdf per email" doesn't attach the file/pdf. When the menu File->send->send by email as pdf is activated, an thunderbird email composer windows appears but without the attached file. When using the Nautilus file browser, the "send file per email" does work as expected If using the "Try Ubuntu live" from an USB key, with a correctly setup thunderbird, the composer windows of thunderbird does include the file when used from libreoffice's "send file/pdf per email" In Libreoffice, my Tools->Options->Internet->E-mail->E-mail programs is set to "sensible-lomua" (setting it to empty does react the same) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1907994/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp