Re: [cobalt-users] Qube 3 - How to stop spam?

[flash22@xxxxxxx]

On Thu, 15 Nov 2001, Wayne Sagar wrote:

> stripped that to just the first one. Is it better to enter the domain or the 
> ip address?

The ip address , if dns fails, you won't be able to block by domain name
;)

> 
> >www.spews.org, get the entire class c blocks and use those
> 
> spews can be a bit restrictive, some of those entire blocks are containing 
> innocents who are not spamming... but I would like to ban blocks that I can 
Occasionally, yes, all spam blocking suffers from this a bit, use with
appropriate care, i usually use spews for research purposes, rather than
direct...

> see are specifically assigned to a few of the mass mailers that are open 
> about their business. What is the proper syntax to block a range in the 
> reject list?

You can block 256 contiguous addresses by just using the beginning of the
IP, eg

1.2.3.  551 spam...

will block all ip's from 1.2.3.0 - 1.2.3.255 , this is unfortunatly the
only form supported by sendmail on these machines...

Of course, you can do fancier things with firewall rules, but i generally
only do that for idiots trying to mailbomb, or that have stupid servers
that think 'denied' means 'try again in 30 seconds' ;)


gsh