I recently installed "Thunderbird android" on my smartphone (Pixel 6a, Android 14) and since I have been using the "K9Mail" app for years, for the Thunderbird configuration I executed the "import from app" following the instructions on this page: https://support.mozilla.org/en-US/kb/thunderbird-android-import I imported several accounts (pop3 accounts and imap accounts). The operation was very simple and went well, except for one aspect... let's say that I would have expected that the import would have also copied the emails from K9Mail to Thunderbird. Instead, this was not the case. I don't know if it's a mistake or something wanted, in any case this fact forces me to keep both applications on my smartphone, Thunderbird to read new emails, K9Mail to read old ones (in fact, sometimes it's useful for me to have old emails available from my phone too). Do you know if there's any other way to transfer all the emails from one app to the other? Thanks in advance!