diff --git a/data/web/edit.php b/data/web/edit.php
index ddc2287f..0eecb797 100644
--- a/data/web/edit.php
+++ b/data/web/edit.php
@@ -1243,8 +1243,8 @@ if (isset($_SESSION['mailcow_cc_role'])) {
             <div class="form-group">
               <label class="control-label col-sm-2" for="mins_interval"><?=$lang['edit']['mins_interval'];?></label>
               <div class="col-sm-10">
-                <input type="number" class="form-control" name="mins_interval" min="1" max="3600" value="<?=htmlspecialchars($result['mins_interval'], ENT_QUOTES, 'UTF-8');?>" required>
-                <small class="help-block">1-3600</small>
+                <input type="number" class="form-control" name="mins_interval" min="1" max="43800" value="<?=htmlspecialchars($result['mins_interval'], ENT_QUOTES, 'UTF-8');?>" required>
+                <small class="help-block">1-43800</small>
               </div>
             </div>
             <div class="form-group">
diff --git a/data/web/inc/functions.mailbox.inc.php b/data/web/inc/functions.mailbox.inc.php
index 5f091743..1d6062fa 100644
--- a/data/web/inc/functions.mailbox.inc.php
+++ b/data/web/inc/functions.mailbox.inc.php
@@ -352,7 +352,7 @@ function mailbox($_action, $_type, $_data = null, $_extra = null) {
             );
             return false;
           }
-          if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 3600)))) {
+          if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 43800)))) {
             $_SESSION['return'][] = array(
               'type' => 'danger',
               'log' => array(__FUNCTION__, $_action, $_type, $_data_log, $_attr),
@@ -1650,7 +1650,7 @@ function mailbox($_action, $_type, $_data = null, $_extra = null) {
               );
               continue;
             }
-            if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 3600)))) {
+            if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 43800)))) {
               $_SESSION['return'][] = array(
                 'type' => 'danger',
                 'log' => array(__FUNCTION__, $_action, $_type, $_data_log, $_attr),
diff --git a/data/web/inc/init_db.inc.php b/data/web/inc/init_db.inc.php
index bf053cab..a8a4aa55 100644
--- a/data/web/inc/init_db.inc.php
+++ b/data/web/inc/init_db.inc.php
@@ -3,7 +3,7 @@ function init_db_schema() {
   try {
     global $pdo;
 
-    $db_version = "12052020_1828";
+    $db_version = "08072020_1932";
 
     $stmt = $pdo->query("SHOW TABLES LIKE 'versions'");
     $num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
@@ -564,7 +564,7 @@ function init_db_schema() {
           "password1" => "VARCHAR(255) NOT NULL",
           "exclude" => "VARCHAR(500) NOT NULL DEFAULT ''",
           "maxage" => "SMALLINT NOT NULL DEFAULT '0'",
-          "mins_interval" => "VARCHAR(50) NOT NULL DEFAULT '0'",
+          "mins_interval" => "SMALLINT UNSIGNED NOT NULL DEFAULT '0'",
           "maxbytespersecond" => "VARCHAR(50) NOT NULL DEFAULT '0'",
           "port1" => "SMALLINT UNSIGNED NOT NULL",
           "enc1" => "ENUM('TLS','SSL','PLAIN') DEFAULT 'TLS'",
diff --git a/data/web/modals/mailbox.php b/data/web/modals/mailbox.php
index 4d1aeb79..063a1066 100644
--- a/data/web/modals/mailbox.php
+++ b/data/web/modals/mailbox.php
@@ -457,8 +457,8 @@ if (!isset($_SESSION['mailcow_cc_role'])) {
           <div class="form-group">
             <label class="control-label col-sm-2" for="mins_interval"><?=$lang['add']['mins_interval'];?></label>
             <div class="col-sm-10">
-              <input type="number" class="form-control" name="mins_interval" min="1" max="3600" value="20" required>
-              <small class="help-block">1-3600</small>
+              <input type="number" class="form-control" name="mins_interval" min="1" max="43800" value="20" required>
+              <small class="help-block">1-43800</small>
             </div>
           </div>
           <div class="form-group">
diff --git a/data/web/modals/user.php b/data/web/modals/user.php
index 15c72b5b..e4c18611 100644
--- a/data/web/modals/user.php
+++ b/data/web/modals/user.php
@@ -53,8 +53,8 @@ if (!isset($_SESSION['mailcow_cc_role'])) {
 					<div class="form-group">
 						<label class="control-label col-sm-2" for="mins_interval"><?=$lang['add']['mins_interval'];?></label>
 						<div class="col-sm-10">
-              <input type="number" class="form-control" name="mins_interval" min="1" max="3600" value="20" required>
-              <small class="help-block">1-3600</small>
+              <input type="number" class="form-control" name="mins_interval" min="1" max="43800" value="20" required>
+              <small class="help-block">1-43800</small>
 						</div>
 					</div>
 					<div class="form-group">