> We've been receiving these blank emails for a while now (no > sender or subject or content) and although they are dealt
> with by Outlook (it puts them in the junk mail folder), I
> wondered if there was a way to block them at the mail server ?
> Well, if they're completely blank, you can use a test of $message_body_size to
reject emails with no body content. However, you may end up rejecting legitimate
mail, so you'll probably want to tailor your tests to your circumstances. For
example, I've known people who send emails with just a short question in the
subject header but no message body.
John
