Addition: > Is there a way to find out which parts of the config affect which > utility?
This is discussed in detail here: https://mailutils.org/manual/html_node/configuration.html To see which configuration files are being used by a particular utility, run it as: prog --config-lint To get a detailed trace of each configuration statement used, along with its location in the configuration file, use prog --config-lint --config-verbose These and other configuration-related options are discussed in detail in the documentation (see the link above). Regards, Sergey