I have recently been inundated with Spam that has a message size of 0B when received in Outlook. Strangely, SmarterMail skips content checking with the following message:
Message exceeds maximum scanning size, skipping content based checks.
I have tried a content rule to handle any email smaller than 1byte but this does not seem to have any effect. This appears to be an exploit in SmarterMail - 0 bytes is too large?
Anyone else seeing this or have thoughts on a fix?