Cannot write new mails in mailfolder
Every time I want to fetch new mails, I have an Warning saying:
Error in account (my account) Could not write mail in mailfolder. Ensure that You have writing rights to the filesystem, and You have sufficient disk space to copy the mailfolder.
I have app 1,2 Mb mails on my system in mailfolders. I have 375 Gb free disk space. I have full rights to the filesystem and have tried to start Thunderbird with administrator rights.
I am running Thunderbird 128.0.1esr (64-bit)