I agree that the response you received from L-Soft support is unacceptable. But I also think that the person who answered you genuinely misunderstood the issue, because we do have a fix that should address your problem: 144-0003 05/07/12 [B] Incorrect boundary used in generated bounces Or rather, this is *my* determination based on reading your problem description. You could of course have a different problem with the same symptoms. But the fact that people with August 2005 builds cannot reproduce the problem suggests that it is in fact the fix you need. Eric