Mailutil The "mailutil" command is used to manage server-side related configuration (e.g., mailboxes, proof-of-work difficulty , etc) The mailutil command houses various subcommands which are  listed below: "mailbox" subcommand:     "create" [NAME]:           Create a new mailbox           Example: "mailbox create foo"     "list":          List available mailboxes          Example: "mailbox list"     "rm" [NAME]"          Delete a specified mailbox          Example: "mailbox rm foo"