diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/UserAuth.php b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/UserAuth.php
index 0b2c3cc3a..7030da219 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/UserAuth.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/Actions/UserAuth.php
@@ -83,12 +83,16 @@ trait UserAuth
 				}
 			}
 
-			$sDefDomain = \trim($this->Config()->Get('login', 'default_domain', ''));
-			if (!\str_contains($sEmail, '@') && \strlen($sDefDomain)) {
-				$this->Logger()->Write('Default domain "' . $sDefDomain . '" was used. (' . $sEmail . ' > ' . $sEmail . '@' . $sDefDomain . ')',
-					\LOG_INFO, 'LOGIN');
+			if (!\str_contains($sEmail, '@')) {
+				$sDefDomain = \trim($this->Config()->Get('login', 'default_domain', ''));
+				if (\strlen($sDefDomain)) {
+					$this->Logger()->Write('Default domain "' . $sDefDomain . '" was used. (' . $sEmail . ' > ' . $sEmail . '@' . $sDefDomain . ')',
+						\LOG_INFO, 'LOGIN');
 
-				$sEmail .= '@' . $sDefDomain;
+					$sEmail .= '@' . $sDefDomain;
+				} else {
+					$this->Logger()->Write('Default domain not configured.', \LOG_INFO, 'LOGIN');
+				}
 			}
 		}
 
diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
index 94911fa17..a8965939e 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
@@ -836,14 +836,17 @@ class ServiceActions
 	{
 		\header('Content-Type: application/javascript; charset=utf-8');
 		$this->oHttp->ServerNoCache();
+		try {
+			$sResult = 'rl.initData('
+				. Utils::jsonEncode($this->oActions->AppData($bAdmin))
+				. ');';
 
-		$sResult = 'rl.initData('
-			.Utils::jsonEncode($this->oActions->AppData($bAdmin))
-			.');';
+			$this->Logger()->Write($sResult, \LOG_INFO, 'APPDATA');
 
-		$this->Logger()->Write($sResult, \LOG_INFO, 'APPDATA');
-
-		return $sResult;
+			return $sResult;
+		} catch (\Throwable $e) {
+			return 'alert(' . \json_encode('ERROR: ' . $e->getMessage()) . ');';
+		}
 	}
 
 	public function compileTemplates(bool $bAdmin = false) : string
diff --git a/snappymail/v/0.0.0/app/templates/Views/User/MailMessageView.html b/snappymail/v/0.0.0/app/templates/Views/User/MailMessageView.html
index 022f7d160..3d446091f 100644
--- a/snappymail/v/0.0.0/app/templates/Views/User/MailMessageView.html
+++ b/snappymail/v/0.0.0/app/templates/Views/User/MailMessageView.html
@@ -196,7 +196,7 @@
 					<span data-i18n="MESSAGE/TAGS"></span>:
 					<span class="messageAssignedTags" data-bind="html: message().tagsToHTML()"></span>
 					<div class="btn-group" data-bind="registerBootstrapDropdown: true" style="display: inline-block">
-						<a class="btn btn-thin btn-transparent dropdown-toggle fontastic" id="tags-dropdown-id" href="#" tabindex="-1">☰</a>
+						<a class="btn btn-thin btn-transparent dropdown-toggle fontastic" id="tags-dropdown-id" href="#" tabindex="-1">🏷</a>
 						<menu class="dropdown-menu right-edge" role="menu" aria-labelledby="tags-dropdown-id">
 							<div data-bind="foreach: message().tagOptions()">
 								<li role="presentation">
diff --git a/snappymail/v/0.0.0/setup.php b/snappymail/v/0.0.0/setup.php
index b80ca7d18..725da827f 100644
--- a/snappymail/v/0.0.0/setup.php
+++ b/snappymail/v/0.0.0/setup.php
@@ -39,6 +39,8 @@ if (defined('APP_VERSION'))
 		'json' => function_exists('json_decode'),
 		'libxml' => function_exists('libxml_use_internal_errors'),
 		'dom' => class_exists('DOMDocument')
+		// https://github.com/the-djmaze/snappymail/issues/392
+//		'phar' => class_exists('PharData')
 	);
 
 	if (in_array(false, $aRequirements))