Per comment #12 it sounds like the problem resolved for the reporter, possibly due to corrections in their local config. I've not seen apparmor messages such as that in my (admittedly limited) playing with dovecot on bionic, so perhaps/hopefully the issue is just historical now.
Per comment #12 it sounds like the problem resolved for the reporter, possibly due to corrections in their local config. I've not seen apparmor messages such as that in my (admittedly limited) playing with dovecot on bionic, so perhaps/hopefully the issue is just historical now.