Do I need this in LocalDelivery mailet: // Add qmail's de facto standard Delivered-To header

[Edward Tan]

Hi,

in org.apache.james.transport.mailets.LocalDelivery:


                // Add qmail's de facto standard Delivered-To header
                MimeMessage localMessage = new MimeMessage(message) {
                    protected void updateHeaders() throws MessagingException
{
                        if (getMessageID() == null) super.updateHeaders();
                        else {
                            modified = false;
                        }
                    }
                };


What is the consequence if I remove this part? Does it mean qmail will not
be able to read the email?

I found that this part fails when processing large attachment.

Regards,
Edward