if(sender.hasPermission(PermissionNodes.MAILING_LISTS)){
    list.add(ChatColor.GOLD + "/xmail list <list name> create " + SPACER + " Creates a new mailing list");
    list.add(ChatColor.GOLD + "/xmail list <list name> disband " + SPACER + " Disbands a mailing list");
}
list.add(ChatColor.GOLD + "/xmail list <list name> op <player name> " + SPACER + " Add a player as an owner of a list");
list.add(ChatColor.GOLD + "/xmail list <list name> deop <player name> " + SPACER + " Remove a player as an owner of a list");
list.add(ChatColor.GOLD + "/xmail list <list name> ban <player name> " + SPACER + " Bans a player from a list");
list.add(ChatColor.GOLD + "/xmail list <list name> unban <player name> " + SPACER + " Unbans a player from a list");
list.add(ChatColor.GOLD + "/xmail list <list name> kick <player name> " + SPACER + " Kicks a player from a list");
list.add(ChatColor.GOLD + "/xmail list <list name> join " + SPACER + " Joins a mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> join <password> " + SPACER + " Joins a password-protected mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> leave " + SPACER + " Leaves a mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> password <password> " + SPACER + " Sets a new password for a mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> removepassword " + SPACER + " Removes a password from a mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> info " + SPACER + " Shows information about a mailing list");
list.add(ChatColor.GOLD + "/xmail list <list name> bank " + SPACER + " View a mailing list's bank");
list.add(ChatColor.GOLD + "/xmail mailinglists [page] " + SPACER + " Lists all mailing lists");