diff --git a/install/tpl/sasl_smtpd.conf.master b/install/tpl/sasl_smtpd.conf.master
index d5934239e56eefb0a1ab7970ee5c3935be1dfb0d..72371270099bcd02d82de2ebf8d0424248eca438 100644
--- a/install/tpl/sasl_smtpd.conf.master
+++ b/install/tpl/sasl_smtpd.conf.master
@@ -6,4 +6,4 @@ sql_hostnames: {mysql_server_ip}
 sql_user: {mysql_server_ispconfig_user}
 sql_passwd: {mysql_server_ispconfig_password}
 sql_database: {mysql_server_database}
-sql_select: select password from mail_user where login = '%u'
+sql_select: select password from mail_user where (login = '%u' or email = '%u@%r') and postfix = 'y' and disablesmtp = 'n'
\ No newline at end of file
diff --git a/install/tpl/sasl_smtpd2.conf.master b/install/tpl/sasl_smtpd2.conf.master
index 85d192e7211a311f3d76209d500204a1fb09701e..5fafe3670ccf3cd5adf17ae3575b75124c4d4a93 100644
--- a/install/tpl/sasl_smtpd2.conf.master
+++ b/install/tpl/sasl_smtpd2.conf.master
@@ -7,4 +7,4 @@ sql_hostnames: {mysql_server_ip}
 sql_user: {mysql_server_ispconfig_user}
 sql_passwd: {mysql_server_ispconfig_password}
 sql_database: {mysql_server_database}
-sql_select: select password from mail_user where (login = '%u' or login = '%u@%r') and postfix = 'y'
+sql_select: select password from mail_user where (login = '%u' or email = '%u@%r') and postfix = 'y' and disablesmtp = 'n'
diff --git a/interface/web/client/client_edit.php b/interface/web/client/client_edit.php
index d16d9031d0ad409da5530b899bbe9a71a4db1bb4..0ef86e8f0cccb08bb25b830133cdb6c730e9586f 100644
--- a/interface/web/client/client_edit.php
+++ b/interface/web/client/client_edit.php
@@ -431,6 +431,8 @@ class page_action extends tform_actions {
 			$to_disable = array('cron' => 'id',
 				'ftp_user' => 'ftp_user_id',
 				'mail_domain' => 'domain_id',
+				'mail_user' => 'mailuser_id',
+				'mail_user_smtp' => 'mailuser_id',
 				'mail_forwarding' => 'forwarding_id',
 				'mail_get' => 'mailget_id',
 				'openvz_vm' => 'vm_id',
@@ -452,17 +454,28 @@ class page_action extends tform_actions {
 				$prev_active = array();
 				$prev_sysuser = array();
 				foreach($to_disable as $current => $keycolumn) {
-					$prev_active[$current] = array();
-					$prev_sysuser[$current] = array();
+					$active_col = 'active';
+					$reverse = false;
+					if($current == 'mail_user') {
+						$active_col = 'postfix';
+					} elseif($current == 'mail_user_smtp') {
+						$current = 'mail_user';
+						$active_col = 'disablesmtp';
+						$reverse = true;
+					}
+					
+					if(!isset($prev_active[$current])) $prev_active[$current] = array();
+					if(!isset($prev_sysuser[$current])) $prev_sysuser[$current] = array();
 
-					$entries = $app->db->queryAllRecords('SELECT `' . $keycolumn . '` as `id`, `sys_userid`, `active` FROM `' . $current . '` WHERE `sys_groupid` = ' . $sys_groupid);
+					$entries = $app->db->queryAllRecords('SELECT `' . $keycolumn . '` as `id`, `sys_userid`, `' . $active_col . '` FROM `' . $current . '` WHERE `sys_groupid` = ' . $sys_groupid);
 					foreach($entries as $item) {
 
-						if($item['active'] != 'y') $prev_active[$current][$item['id']]['active'] = 'n';
-						if($item['sys_userid'] != $sys_userid) $prev_sysuser[$current][$item['id']]['active'] = $item['sys_userid'];
+						if($item[$active_col] != 'y' && $reverse == false) $prev_active[$current][$item['id']][$active_col] = 'n';
+						elseif($item[$active_col] == 'y' && $reverse == true) $prev_active[$current][$item['id']][$active_col] = 'y';
+						if($item['sys_userid'] != $sys_userid) $prev_sysuser[$current][$item['id']] = $item['sys_userid'];
 						// we don't have to store these if y, as everything without previous state gets enabled later
 
-						$app->db->datalogUpdate($current, array('active' => 'n', 'sys_userid' => $_SESSION["s"]["user"]["userid"]), $keycolumn, $item['id']);
+						$app->db->datalogUpdate($current, array($active_col => ($reverse == true ? 'y' : 'n'), 'sys_userid' => $_SESSION["s"]["user"]["userid"]), $keycolumn, $item['id']);
 					}
 				}
 
@@ -473,20 +486,31 @@ class page_action extends tform_actions {
 				unset($prev_sysuser);
 			} elseif($this->dataRecord['locked'] == 'n') {
 				foreach($to_disable as $current => $keycolumn) {
+					$active_col = 'active';
+					$reverse = false;
+					if($current == 'mail_user') {
+						$active_col = 'postfix';
+					} elseif($current == 'mail_user_smtp') {
+						$current = 'mail_user';
+						$active_col = 'disablesmtp';
+						$reverse = true;
+					}
+					
 					$entries = $app->db->queryAllRecords('SELECT `' . $keycolumn . '` as `id` FROM `' . $current . '` WHERE `sys_groupid` = ' . $sys_groupid);
 					foreach($entries as $item) {
-						$set_active = 'y';
+						$set_active = ($reverse == true ? 'n' : 'y');
+						$set_inactive = ($reverse == true ? 'y' : 'n');
 						$set_sysuser = $sys_userid;
 						if(array_key_exists('prev_active', $tmp_data) == true
 							&& array_key_exists($current, $tmp_data['prev_active']) == true
 							&& array_key_exists($item['id'], $tmp_data['prev_active'][$current]) == true
-							&& $tmp_data['prev_active'][$current][$item['id']] == 'n') $set_active = 'n';
+							&& $tmp_data['prev_active'][$current][$item['id']][$active_col] == $set_inactive) $set_active = $set_inactive;
 						if(array_key_exists('prev_sysuser', $tmp_data) == true
 							&& array_key_exists($current, $tmp_data['prev_sysuser']) == true
 							&& array_key_exists($item['id'], $tmp_data['prev_sysuser'][$current]) == true
 							&& $tmp_data['prev_sysuser'][$current][$item['id']] != $sys_userid) $set_sysuser = $tmp_data['prev_sysuser'][$current][$item['id']];
 
-						$app->db->datalogUpdate($current, array('active' => $set_active, 'sys_userid' => $set_sysuser), $keycolumn, $item['id']);
+						$app->db->datalogUpdate($current, array($active_col => $set_active, 'sys_userid' => $set_sysuser), $keycolumn, $item['id']);
 					}
 				}
 				if(array_key_exists('prev_active', $tmp_data)) unset($tmp_data['prev_active']);
diff --git a/interface/web/mail/form/mail_user.tform.php b/interface/web/mail/form/mail_user.tform.php
index fdfd6a629235bdf408a07782e1259773a2dbe5c4..c4101a3d71dd220bde336f2bd00a9fc7d68a4789 100644
--- a/interface/web/mail/form/mail_user.tform.php
+++ b/interface/web/mail/form/mail_user.tform.php
@@ -222,6 +222,12 @@ $form["tabs"]['mailuser'] = array(
 			'value'		=> array(1 => 'y',0 => 'n')
 		),
 		*/
+		'disablesmtp' => array (
+			'datatype' => 'VARCHAR',
+			'formtype' => 'CHECKBOX',
+			'default' => 'n',
+			'value'  => array(1 => 'y', 0 => 'n')
+		),
 		'disableimap' => array (
 			'datatype' => 'VARCHAR',
 			'formtype' => 'CHECKBOX',
diff --git a/interface/web/mail/lib/lang/de_mail_user.lng b/interface/web/mail/lib/lang/de_mail_user.lng
index c4b6c5614f9cc4fb0f7a9758ec5c4626c07ff22a..641eb13cbce5bf503c3e92e57e2996c6d016cc62 100644
--- a/interface/web/mail/lib/lang/de_mail_user.lng
+++ b/interface/web/mail/lib/lang/de_mail_user.lng
@@ -16,12 +16,13 @@ $wb['quota_txt'] = 'Beschränkung';
 $wb['server_id_txt'] = 'Server ID';
 $wb['password_txt'] = 'Passwort';
 $wb['maildir_txt'] = 'E-Mail Verzeichnis';
-$wb['postfix_txt'] = 'Aktiviere SMTP (in/out)';
+$wb['postfix_txt'] = 'Aktiviere Empfang';
 $wb['access_txt'] = 'Aktiviere Zugriff';
 $wb['policy_txt'] = 'Spamfilter';
 $wb['no_policy'] = '- nicht aktiviert -';
 $wb['limit_mailbox_txt'] = 'Die maximale Anzahl an E-Mailkonten für Ihr Konto wurde erreicht.';
 $wb['limit_mailquota_txt'] = 'Der maximale Speicherplatz für Ihr E-Mail Konto wurde erreicht. Der maximal verfügbare Speicher in MB ist';
+$wb["disablesmtp_txt"] = 'SMTP (Mailversand) deaktivieren';
 $wb['disableimap_txt'] = 'IMAP deaktivieren';
 $wb['disablepop3_txt'] = 'POP3 deaktivieren';
 $wb['password_strength_txt'] = 'Passwortkomplexität';
diff --git a/interface/web/mail/lib/lang/en_mail_user.lng b/interface/web/mail/lib/lang/en_mail_user.lng
index 23f5e850620c0236ccbc28247db2a7f3784527a8..65802a1c18e30f9687ecbae7783f0187d1087c64 100644
--- a/interface/web/mail/lib/lang/en_mail_user.lng
+++ b/interface/web/mail/lib/lang/en_mail_user.lng
@@ -21,12 +21,13 @@ $wb["quota_txt"] = 'Quota (0 for unlimited)';
 $wb["server_id_txt"] = 'Aerver_id';
 $wb["password_txt"] = 'Password';
 $wb["maildir_txt"] = 'Maildir';
-$wb["postfix_txt"] = 'Enable SMTP (in/out)';
-$wb["access_txt"] = 'Enable Access';
+$wb["postfix_txt"] = 'Enable receiving';
+$wb["access_txt"] = 'Enable access';
 $wb["policy_txt"] = 'Spamfilter';
 $wb["no_policy"] = '- not enabled -';
 $wb["limit_mailbox_txt"] = 'The max. number of mailboxes for your account is reached.';
 $wb["limit_mailquota_txt"] = 'The max space for mailboxes is reached. The max. available space in MB is';
+$wb["disablesmtp_txt"] = 'Disable SMTP (sending)';
 $wb["disableimap_txt"] = 'Disable IMAP';
 $wb["disablepop3_txt"] = 'Disable POP3';
 $wb["duplicate_alias_or_forward_txt"] = 'There is already an alias or forward with this email address.';
diff --git a/interface/web/mail/mail_user_edit.php b/interface/web/mail/mail_user_edit.php
index 0ed2eb00c7dafd58c1b4f4a6be3e2109022ca96b..0c9110bb73e410195a371ba0f1372579cf5bd683 100644
--- a/interface/web/mail/mail_user_edit.php
+++ b/interface/web/mail/mail_user_edit.php
@@ -257,7 +257,7 @@ class page_action extends tform_actions {
 			$disableimap = ($this->dataRecord["disableimap"])?'y':'n';
 			$disablepop3 = ($this->dataRecord["disablepop3"])?'y':'n';
 			$disabledeliver = ($this->dataRecord["postfix"] == 'y')?'n':'y';
-			$disablesmtp = ($this->dataRecord["postfix"] == 'y')?'n':'y';
+			$disablesmtp = ($this->dataRecord["disablesmtp"])?'y':'n';
 
 			$sql = "UPDATE mail_user SET disableimap = '$disableimap', disablesieve = '$disableimap', disablepop3 = '$disablepop3', disablesmtp = '$disablesmtp', disabledeliver = '$disabledeliver', disablelda = '$disabledeliver', disabledoveadm = '$disableimap' WHERE mailuser_id = ".$this->id;
 			$app->db->query($sql);
@@ -298,7 +298,7 @@ class page_action extends tform_actions {
 			$disableimap = (isset($this->dataRecord["disableimap"]) && $this->dataRecord["disableimap"])?'y':'n';
 			$disablepop3 = (isset($this->dataRecord["disablepop3"]) && $this->dataRecord["disablepop3"])?'y':'n';
 			$disabledeliver = ($this->dataRecord["postfix"] == 'y')?'n':'y';
-			$disablesmtp = ($this->dataRecord["postfix"] == 'y')?'n':'y';
+			$disablesmtp = (isset($this->dataRecord["disablesmtp"]) && $this->dataRecord["disablesmtp"])?'y':'n';
 
 			$sql = "UPDATE mail_user SET disableimap = '$disableimap', disablesieve = '$disableimap', `disablesieve-filter` = '$disableimap', disablepop3 = '$disablepop3', disablesmtp = '$disablesmtp', disabledeliver = '$disabledeliver', disablelda = '$disabledeliver', disabledoveadm = '$disableimap' WHERE mailuser_id = ".$this->id;
 			$app->db->query($sql);
diff --git a/interface/web/mail/templates/mail_user_mailbox_edit.htm b/interface/web/mail/templates/mail_user_mailbox_edit.htm
index f946502dbd11d9b4a1bc79114d9c244cee736928..0c564c3bb84db17e42d94da2ee379854fe6d43ae 100644
--- a/interface/web/mail/templates/mail_user_mailbox_edit.htm
+++ b/interface/web/mail/templates/mail_user_mailbox_edit.htm
@@ -56,6 +56,12 @@
                     {tmpl_var name='postfix'}
                 </div>
             </div>
+            <div class="ctrlHolder">
+                <p class="label">{tmpl_var name='disablesmtp_txt'}</p>
+                <div class="multiField">
+                    {tmpl_var name='disablesmtp'}
+                </div>
+            </div>
             <div class="ctrlHolder">
                 <p class="label">{tmpl_var name='disableimap_txt'}</p>
                 <div class="multiField">