Package: exim4-config Version: 4.92-8+deb10u3 Severity: normal Dear Maintainer,
the setting "mail sent by smarthost; no local mail" is not correct. It promises 'no local mail', but later is says: "The local hostname (the_name_of_host) and 'localhost' are always added to the list given here." So even if I choose dc_eximconfig_configtype='satellite' and dc_other_hostnames='' it will populate local_domains with '@' and 'localhost' and such letters will be frozen locally. The only way I found to fix is to clean MAIN_LOCAL_DOMAINS in localmacros file. The solution I see is to replace dc_other_hostnames with dc_hostnames and add '@' with 'localhost' by default here. So the old behaviour will be kept, but it will be customizable from the package configuration.
