Update system_config_mail_edit.htm

Author: martin-enavn

interface/web/admin/templates/system_config_mail_edit.htm

@@ -29,6 +29,12 @@ <h1><tmpl_var name="list_head_txt"></h1>
                     {tmpl_var name='mailbox_show_custom_rules_tab'}
                 </div>
             </div>
+            <div class="form-group">
+                <label class="col-sm-3 control-label">{tmpl_var name='mailbox_show_backup_tab_txt'}</label>
+                <div class="col-sm-9">
+                    {tmpl_var name='mailbox_show_backup_tab'}
+                </div>
+            </div>
             <div class="form-group">
                 <label class="col-sm-3 control-label">{tmpl_var name='mailboxlist_webmail_link_txt'}</label>
                 <div class="col-sm-9">