diff --git a/notifications/inc/class.notifications_email.inc.php b/notifications/inc/class.notifications_email.inc.php
index 3163b4c27c..2063e5ba59 100644
--- a/notifications/inc/class.notifications_email.inc.php
+++ b/notifications/inc/class.notifications_email.inc.php
@@ -91,18 +91,28 @@ class notifications_email implements notifications_iface {
 
 		$this->mail->ClearAddresses();
 		$this->mail->ClearAttachments();
-		$this->mail->IsHTML(true);
 		$this->mail->AddAddress($this->recipient->account_email, $this->recipient->account_fullname);
 		$this->mail->AddCustomHeader('X-eGroupWare-type: notification-mail');
 		$this->mail->From = $this->sender->account_email;
 		$this->mail->FromName = $this->sender->account_fullname;
 		$this->mail->Subject = $this->mail->encode_subject($_subject);
-		$this->mail->Body = $body_html;
-		$this->mail->AltBody = $body_plain;
-		if(is_array($_attachments) && count($_attachments) > 0) {
-		  foreach($_attachments as $attachment) {
-			$this->mail->AddStringAttachment($attachment->string, $attachment->filename, $attachment->encoding, $attachment->type);
-		  }
+		//error_log(__METHOD__.__LINE__.array2string($_attachments));
+		if ($_attachments && stripos($_attachments[0]->type,"text/calendar; method=")!==false)
+		{
+			$this->mail->Body = $body_plain;
+			$this->mail->AltBody = $_attachments[0]->string;
+			$this->mail->AltBodyContentType = $_attachments[0]->type;
+		}
+		else
+		{
+			$this->mail->IsHTML(true);
+			$this->mail->Body = $body_html;
+			$this->mail->AltBody = $body_plain;
+			if(is_array($_attachments) && count($_attachments) > 0) {
+				foreach($_attachments as $attachment) {
+					$this->mail->AddStringAttachment($attachment->string, $attachment->filename, $attachment->encoding, $attachment->type);
+		  		}
+			}
 		}
 		if(!$error=$this->mail->Send()) {
 			throw new Exception("Failed sending notification message via email.$error".print_r($this->mail->ErrorInfo,true));
diff --git a/phpgwapi/inc/class.phpmailer.inc.php b/phpgwapi/inc/class.phpmailer.inc.php
index cf6558377f..8dfda812ea 100644
--- a/phpgwapi/inc/class.phpmailer.inc.php
+++ b/phpgwapi/inc/class.phpmailer.inc.php
@@ -108,6 +108,12 @@ class PHPMailer {
    */
   public $Subject           = '';
 
+  /**
+   * Sets the ContentType of the Body; default is text/plain
+   * @var string
+   */
+  public $BodyContentType = 'text/plain';
+
   /**
    * Sets the Body of the message.  This can be either an HTML or text body.
    * If HTML then run IsHTML(true).
@@ -115,6 +121,12 @@ class PHPMailer {
    */
   public $Body              = '';
 
+  /**
+   * Sets the ContentType of the AltBody; default is text/plain
+   * @var string
+   */
+  public $AltBodyContentType = 'text/plain';
+
   /**
    * Sets the text-only body of the message.  This automatically sets the
    * email to multipart/alternative.  This body can be read by mail
@@ -360,6 +372,7 @@ class PHPMailer {
     } else {
       $this->ContentType = 'text/plain';
     }
+    $this->BodyContentType = $this->ContentType;
   }
 
   /**
@@ -1098,7 +1111,6 @@ class PHPMailer {
     switch($this->message_type) {
       case 'alt':
       case 'alt_attachments':
-	  case 'alt_extended':
         $this->AltBody = $this->WrapText($this->AltBody, $this->WordWrap);
         break;
       default:
@@ -1204,7 +1216,6 @@ class PHPMailer {
         break;
       case 'attachments':
       case 'alt_attachments':
-	  case 'alt_extended':
         if($this->InlineImageExists()){
           $result .= sprintf("Content-Type: %s;%s\ttype=\"text/html\";%s\tboundary=\"%s\"%s", 'multipart/related', $this->LE, $this->LE, $this->boundary[1], $this->LE);
         } else {
@@ -1241,10 +1252,10 @@ class PHPMailer {
 
     switch($this->message_type) {
       case 'alt':
-        $body .= $this->GetBoundary($this->boundary[1], '', 'text/plain', '');
+        $body .= $this->GetBoundary($this->boundary[1], '', $this->AltBodyContentType, ''); // may be set by client, defaults to text/plain
         $body .= $this->EncodeString($this->AltBody, $this->Encoding);
         $body .= $this->LE.$this->LE;
-        $body .= $this->GetBoundary($this->boundary[1], '', 'text/html', '');
+        $body .= $this->GetBoundary($this->boundary[1], '', $this->BodyContentType, ''); //is dependent on IsHTML
         $body .= $this->EncodeString($this->Body, $this->Encoding);
         $body .= $this->LE.$this->LE;
         $body .= $this->EndBoundary($this->boundary[1]);
@@ -1270,22 +1281,6 @@ class PHPMailer {
         $body .= $this->EndBoundary($this->boundary[2]);
         $body .= $this->AttachAll();
         break;
-      case 'alt_extended':
-        $body .= sprintf("--%s%s", $this->boundary[1], $this->LE);
-        $body .= sprintf("Content-Type: %s;%s" . "\tboundary=\"%s\"%s", 'multipart/alternative', $this->LE, $this->boundary[2], $this->LE.$this->LE);
-        $body .= $this->GetBoundary($this->boundary[2], '', 'text/plain', '') . $this->LE; // Create text body
-        $body .= $this->EncodeString($this->AltBody, $this->Encoding);
-        $body .= $this->LE.$this->LE;
-        $body .= $this->GetBoundary($this->boundary[2], '', 'text/html', '') . $this->LE; // Create the HTML body
-        $body .= $this->EncodeString($this->Body, $this->Encoding);
-        $body .= $this->LE.$this->LE;
-		// Create the extended body for an attached text/calendar
-        $body .= $this->GetBoundary($this->boundary[2], '', $this->attachment[0][4], '') . $this->LE; 
-        $body .= $this->EncodeString($this->attachment[0][0], $this->attachment[0][3]);
-        $body .= $this->LE.$this->LE;
-        $body .= $this->EndBoundary($this->boundary[2]);
-        $body .= $this->AttachAll();
-        break;
     }
 
     if ($this->IsError()) {
@@ -1376,9 +1371,6 @@ class PHPMailer {
       if(strlen($this->AltBody) > 0 && count($this->attachment) > 0) {
         $this->message_type = 'alt_attachments';
       }
-      if(strlen($this->AltBody) > 0 && count($this->attachment) > 0 && stripos($this->attachment[0][4],'text/calendar')!==false) {
-        $this->message_type = 'alt_extended';
-      }
     }
   }