On Tue, 2005-06-07 at 11:30 -0700, John W. Baxter wrote:
> On 6/7/05 10:40 AM, "Tony Marques" <[EMAIL PROTECTED]> wrote:
> > A virus spoofing my domain will send an Exim server a message which
> > will initially accept the message but later tries to bounce the
> > message because it finds the illicit .scr/.pif/.exe attachment, the
> > mailbox is full, no such user or some other problem.  So now the Exim
> > server generates and sends a bounce to my server which detects the
> > illicit attachment or forgery and responds with either a
> 
> It's more an error in configuration.  These days, sending back an entire
> message in a bounce is most unfriendly, since it's so likely to distribute a
> virus to an innocent third party.  We cut off our bounce messages at--I
> think--10K.  Newer Exims (I forget the transition point) can also be
> configured not to return the body at all).

a bit belated response, but I need to object to this assertion.  if you
don't have virus scanning to stop yourself from sending out these worms,
please send the virii intact so that _our_ virus scanner will be able to
recognise and discard them.  at least Sophos consider 10K snippets of
virii generally benign -- they can no longer reproduce.  they're still
an annoyance to our users, though.

(yes, we're using bogus-warning.cf, and it helps a lot.)
-- 
Kjetil T.


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