vesta/web/templates/admin/menu_edit_mail.html

<table class="sub-menu">
<tr>
    <td style="padding: 14px 0 24px 0;" ><a class="add-name"><b>Editing Mail Domain</b></a>
    <?php 
        if (!empty($_SESSION['error_msg'])) {
            echo "<a class=\"add-error\"> → ".$_SESSION['error_msg']."</a>";
        } else {
            if (!empty($_SESSION['ok_msg'])) {
                echo "<a class=\"add-ok\"> → ".$_SESSION['ok_msg']."</a>";
            }
        }
    ?>
    </td>
</tr>
</table>