path: exim4_4.99.1-1/debian/exim4-base.postrm
                  ls -al /run/exim4/
                  cat /run/exim4/exim.pid
                  pidof exim4
                  if pidof exim4; then
                    echo >&2 "WARN: There are some exim4 processes still running after stopping exim"