diff --git a/src/backend/imap/imap.php b/src/backend/imap/imap.php
index 12c3c240..ce4b05a6 100644
--- a/src/backend/imap/imap.php
+++ b/src/backend/imap/imap.php
@@ -3124,6 +3124,9 @@ public function saveDraftMail($sm) {
         }
 
         ZLog::Write(LOGLEVEL_WARN, sprintf("BackendIMAP->SaveDraftMail(): We get the new message"));
+        ZLog::Write(LOGLEVEL_WARN, sprintf("BackendIMAP->SaveDraftMail(): sm->mimedata: %s", $sm->mimedata));
+        
+        // set $message if there is mimedata 
         $mobj = new Mail_mimeDecode($sm->mimedata);
         $message = $mobj->decode(array('decode_headers' => 'utf-8', 'decode_bodies' => true, 'include_bodies' => true, 'rfc_822bodies' => true, 'charset' => 'utf-8'));
         unset($mobj);