diff --git a/Modules.Jobs/EDMI/ZUGFeRD/EmailFunctions.vb b/Modules.Jobs/EDMI/ZUGFeRD/EmailFunctions.vb
index a34d866e..af586642 100644
--- a/Modules.Jobs/EDMI/ZUGFeRD/EmailFunctions.vb
+++ b/Modules.Jobs/EDMI/ZUGFeRD/EmailFunctions.vb
@@ -176,6 +176,7 @@ Public Class EmailFunctions
         If IO.File.Exists(oAttachmentPath) Then
             Return oAttachmentPath
         Else
+            _logger.Warn("Email File {0} does not exist. Empty String will be returned.", oAttachmentPath)
             Return String.Empty
         End If
     End Function