Re: [PATCH] tweak QP's header handling for messages with no body

On 8/15/2011 3:39 PM, Jared Johnson wrote:
> Hi,
>
> We got a bug report from someone using IBM's Lotus suite (I think for both
> their MUA and MTA).  Their users would often send messages where all the
> content was in the subject and they didn't bother sending any message
> content.  I'm not sure if it's due to an apparently uncommon behavior for
> their particular MUA or their MTA, but every one of these messages was
> coming through with data in a form that looked like this:
>
> "Subject: howdy\r\n.\r\n"

As a FYI, I've been seeing bot-emitted spam that appears to have extra 
\r at the end of _all_ header lines, and the qpsmtpd parser seems to be 
treating all of it as part of the _body_.  IOW: except for the received 
line inserted by qpsmtpd, qpsmtpd doesn't see _any_ headers.

This implementation is backrev (0.80 I think), and as it's only spam 
from one particular bot, we don't care about that particular wierdness 
enough to investigate further.  But it's worth being aware of.