The /etc/virtual/limit file is used to limit the number of emails a DirectAdmin User can send per day. 0 is unlimited. Related: http://help.directadmin.com/item.php?id=81 Add /etc/virtual/limit into Admin Settings. This is just the global setting, and doesn't apply to overrides of /etc/virtual/limit_user, which you can do manually, in combination with the new exim.pl. SKINS: admin/admin_settings.html added an email section.