[Spambayes] Spambayes as an open mil relay ???

[Jeff Epler]

On Tue, Mar 02, 2004 at 11:20:27AM +1300, Tony Meyer wrote:
> > If a spammer connects to my smtp port, they can only send 
> > mail to local addresses.  But if a spammer connects to 
> > sb_smtpproxy.py, the address the real smtp server sees is a 
> > local address, and it will relay to any address.
> 
> Good point, although don't most SMTP servers require authentication these
> days?  (All the ones I have access to do, although I don't really have any
> idea about anywhere else).

All the SMTP servers I use do not require authentication from users who
are "inside" the network in some sense.   This is the case for my
personal network, my ISP's network, and my employer's network.

Jeff