The command line interface (CLI) is an alternative to the web user interface (web UI).
Both can be used to configure the FortiMail unit. However, to perform the configuration, in the web UI, you would use buttons, icons, and forms, while, in the CLI, you would either type lines of text that are commands, or upload batches of commands from a text file, like a configuration script.
If you are new to Fortinet products, or if you are new to the CLI, this section can help you to become familiar.
This section contains the following topics: