Message routing files
Logging of message events is controlled by a routing file. Entries in the routing file for a server determine which message events to log.
The server configuration files pick up the information from the routing files. If for any reason
a routing file is deleted, the log-file stanza entry for the appropriate server is
used instead.
Within routing files, you can disable or enable any type of message logs by adding or removing the comment character (#) at the beginning of the line in the routing file.