openEuler 2203-LTS系统 useradd fanzha2121fanzhaGroup mail not found Creating the user mailbox file with 0600 mode

The command "useradd fanzha2121fanzha" is creating a new user called "fanzha2121fanzha" on the openEuler 22.03-LTS system. However, it seems to be encountering an error stating that the group 'mail' is not found. As a result, it is creating the user mailbox file with a mode of 0600.