To assign quota to a user create a folder quota on your server '/' partition mkdir /quota to assign quota to any user echo "10000" > /quota/username This would give 10MB quota to a user. Give whatever you wish to assign. Create the following file /var/www/html/horde/quota.php <?php { $user=Auth::getAuth(); $usage = `sudo du -s /home/$user/mail | cut -d "/" -f 1` + `sudo du -s /var/spool/mail/$user | cut -d "/" -f 1` - $archive; $archiveused = round($archive/1000); $usedmb = round($usage / 1000); $quota = `cat /quota/$user`+ 1; $quotamb = round($quota / 1000); $percent = round($usage * 100 / $quota); if ($quota > 1) { echo '<table width="100%" border="0" cellpadding="0" cellspacing="0"><tr><td class= "item"><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr>'; echo '<td align="left" class="header">Login: ' . $user . '</td>'; echo '<td align="right" class="header">'; echo "Quota Used $usedmb MB of $quotamb MB ($percent %)"; echo '</td></tr></table></td></tr></table>'; } if ($percent >= 100 && $quota > 2) { echo '<script language="JavaScript" type="text/javascript"><!-- alert("QUOTA EXCEEDED, DELETE EMAILS TO CONTINUE THE USE OF EMAIL FACILITY") // --> </script>';} if ($percent >= 80 && $quota > 2) { echo '<script language="JavaScript" type="text/javascript"><!-- alert("You are nearing your mailbox quota limit, please delete & purge emails to avoid any inconvinience.") // --> </script>';} } Change the above reflecting your mailserver's folder locations. Above is for dovecot on RHEL 3, with mails in /home/username/mail and /var/spool/mail/username. Add this in horde/imp/templates/common-headers.inc (line 27, 28,29) $page_title = $GLOBALS['registry']->get('name'); if (!empty($title)) $page_title .= ' :: ' . $title; if (!empty($refresh_time) && !empty($refresh_url)) { echo "<meta http-equiv="refresh" content="$refresh_time;url=$refresh_url" />n"; } Horde::includeScriptFiles(); ?> <title><?php echo htmlspecialchars($page_title) ?></title> --->Add the following here <---- <?php include_once HORDE_BASE . '/quota.php'; ?> ---end--- <link href="<?php echo $GLOBALS['registry']->getImageDir()?>/favicon.ico" rel="SHORTCUT ICON" /> <?php if (isset($mailbox_url)): ?> This should give you quota information on any mail server regardless of the support of quota by the server or OS quota assignments. Do let me know if this was useful or any improvement suggestions. jigish dot gohil at gmail dot com