From time to time (it's increasing through the last weeks) mails that my users send are received just as an empty email with no text and no attachments. As users and receipients are too various, it's getting hard to ignore the issue. Resending the mail might just lead to succesful delivery. I was checking the smtp log on such an occasion, the transmitted bytes matched the email size shown in Outlook. Are there any ways to further debug this behavior? TIA Alex