Ted Lemon wrote:
> 
> Take a look at http://www.vix.com/spam.  I have actually hacked a list
> of sites which send me more spam than useful information, and I refuse
> email from those sites, but this doesn't eliminate spam - it just gets
> rid of the easy stuff.  If they forge their headers, sendmail believes
> them.

There are options under NetBSD-current:

1.	Use ipfilter to block connections to port 25 from bad hosts.

2.	Install Smail, which can refuse requests from a list of sites,
and which is easy to maintain - sendmail without the security holes.

While you're at it, you might want to prevent becoming a relay for a 
spammer too...

>From the Smail mailing list, mark@islandnet.com (Mark Morley) wrote:
:For a while now we've been running 3.2 with Greg's patches that allow
:the blocking of pass-thru email (mail that's neither from nor to local
:addresses).  It's amazing just how much email of this type was being
:passed through our server.  At least one well-known spam site was
:using us as a relay, and this stopped that dead in its tracks.

						David Maxwell