diff --git a/phpgwapi/inc/class.egw_mailer.inc.php b/phpgwapi/inc/class.egw_mailer.inc.php
index ddf9656965..2a74331808 100644
--- a/phpgwapi/inc/class.egw_mailer.inc.php
+++ b/phpgwapi/inc/class.egw_mailer.inc.php
@@ -28,7 +28,7 @@ class egw_mailer extends PHPMailer
 		parent::__construct(true);	// throw exceptions instead of echoing errors
 
 		// setting EGroupware specific path for PHPMailer lang files
-		list($lang,$nation) = explode('-',$GLOBALS['egw_info']['user']['preferences']['common']['lang']);
+		if (!empty($GLOBALS['egw_info']['user']['preferences']['common']['lang'])) list($lang,$nation) = explode('-',$GLOBALS['egw_info']['user']['preferences']['common']['lang']);
 		$lang_path = EGW_SERVER_ROOT.'/phpgwapi/lang/';
 		if ($nation && file_exists($lang_path."phpmailer.lang-$nation.php"))	// atm. only for pt-br => br
 		{
@@ -198,4 +198,33 @@ class egw_mailer extends PHPMailer
 
 		return parent::AddBCC($address, $name);
 	}
+
+	/**
+	 * Adds a string or binary attachment (non-filesystem) to the list.
+	 * This method can be used to attach ascii or binary data,
+	 * such as a BLOB record from a database.
+	 * @param string $string String attachment data.
+	 * @param string $filename Name of the attachment. We assume that this is NOT a path
+	 * @param string $encoding File encoding (see $Encoding).
+	 * @param string $type File extension (MIME) type.
+	 * @return void
+	 */
+	public function AddStringAttachment($string, $filename, $encoding = 'base64', $type = 'application/octet-stream')
+	{
+		// Append to $attachment array
+		//already encoded?
+		//TODO: maybe add an parameter to AddStringAttachment to avoid using the basename
+		$x += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $filename, $matches);
+		$this->attachment[] = array(
+			0 => $string,
+			1 => $filename,
+			2 => ($x?basename($filename):$filename),
+			3 => $encoding,
+			4 => $type,
+			5 => true,  // isStringAttachment
+			6 => 'attachment',
+			7 => 0
+		);
+	}
+
 }
diff --git a/phpgwapi/inc/class.phpmailer.inc.php b/phpgwapi/inc/class.phpmailer.inc.php
index 2b8292cb33..45875b87db 100644
--- a/phpgwapi/inc/class.phpmailer.inc.php
+++ b/phpgwapi/inc/class.phpmailer.inc.php
@@ -345,7 +345,7 @@ class PHPMailer {
   private   $bcc            = array();
   private   $ReplyTo        = array();
   private   $all_recipients = array();
-  private   $attachment     = array();
+  protected $attachment     = array(); //this way extended classes may use this variable
   private   $CustomHeader   = array();
   private   $message_type   = '';
   private   $boundary       = array();
@@ -1265,7 +1265,7 @@ class PHPMailer {
     $body = '';
 
     if ($this->sign_key_file) {
-      $body .= $this->GetMailMIME();
+      $body .= $this->GetMailMIME()."\n";
     }
 
     $this->SetWordWrap();
@@ -1330,8 +1330,8 @@ class PHPMailer {
         $signed = tempnam("", "signed");
         if (@openssl_pkcs7_sign($file, $signed, "file://".$this->sign_cert_file, array("file://".$this->sign_key_file, $this->sign_key_pass), NULL)) {
           @unlink($file);
-          @unlink($signed);
           $body = file_get_contents($signed);
+          @unlink($signed);
         } else {
           @unlink($file);
           @unlink($signed);