I am running Fedora. A few days ago I upgraded from 30 to 31. Now when
I try to 'Send' an email, I get the error listed in the Subject.
I Use 'Fetchmail' and 'Procmail' to get my email off my ISP and deliver
it locally. There is no problem there. I can recieve and view all my
Roundcube email using web browser, but I cannot send. I use another
email client to send right now.