Note“{Parameter1:{Parameter2}:…::{Parameter
                                    n}" means you can use one or more parameters by separating
                                 them using colons.
                               
                              You can find the parameter names in the
                                 table tb_postfixconfig from the database, under
                                 the column fieldname.
                               
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                           WARNINGUse extreme
                                 caution when modifying the configuration file.
                               
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