condition     = ${if or { \
                        # helo == ''
                        {eq{$sender_helo_name}{}{yes}{no}} \
                        # ip address in helo
                        {eq{$sender_helo_name}{$sender_host_address}{yes}{no}} \
                        # my name in helo
                        {eq{$sender_helo_name}$interface_address}{yes}{no}} \
                        # only digits in helo
                        {match{$sender_helo_name}{\N^\d+$\N}{yes}{no}} \
                        # dynamic addresses
                        {${if match{$sender_host_name}{dialup|pool|peer|dhcp}{yes}{no}}} \
                        }