postconf
Postfix configuration utility. This command displays the values of the `main.cf` configuration parameters by default and warns about possible mistyped parameter names. It can also change the `main.cf` configuration parameter values.
More info →Examples (6)
Specify the directory of the `main.cf` configuration file instead of the default configuration directory
postconf -c path/to/configuration_directoryEdit the `main.cf` configuration file and update parameter settings with the "name=value" pairs
postconf -ePrint the default parameter settings of the `main.cf` instead of the actual settings
postconf -dDisplay parameters only from the specified class
postconf -C builtin|service|user|allList available SASL plug-in types for the Postfix SMTP server. The plug-in type is selected with the `smtpd_sasl_type` configuration parameter by specifying `cyrus` or `dovecot` as the name
postconf -aList the names of all supported lookup table types. Lookup tables are specified as `type:name` in configuration files where the type can be `btree`, `cdb`, `hash`, `mysql`, etc
postconf -m