very basic IP address question

[lee <da...@btinternet.com>]

hello everyone,

With IP addresses, do the blocks of numbers have any specific meaning or 
location-specific detail?

For eg, lots of spam I'm getting sent to one of my domain's addresses 
with netsky attachments always shows 203.221 as the first two IP blocks 
when I look at the received header. The actual apparent sender address 
is always different but often <something>@hotmail.com

I don't know if such knowledge would then allow me to (safely) set a 
filter or rule somewhere in my cpanel or spam assassin to just discard 
any mail from that person(s).
Ideally, I would like to set a filter(s) in my cpanel 9 hosting to just 
discard based on one or more rules, but the email filtering seems quite 
inflexible and basic.

I do have avast! virus scanning on my pc which always picks up and warns 
of the incoming nasty, but I'm trying to avoid such emails getting 
through my domain in the first place, even if I was to manage 
configuring spam assassin to flag them as SPAM.

Thanks a lot,
lee



scanned by lee's virus software. outbound message found to be clean.

Re: very basic IP address question

[lee <da...@btinternet.com>]

Thanks,

I've now sent their abuse department the details, although I understand 
that spammers can appear to be on a certain ISP even if they're not.

lee


jdow wrote:

>
>A simple "whois" query indicates this is a set of addresses "owned"
>by Comindico in Oz. If you don't have "whois" handy visit the
>http://www.dnsstuff.com/ site and play there. Whois is on the left.
>{^_^}
>  
>
-- 

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scanned by lee's virus software. outbound message found to be clean.

Re: very basic IP address question

[jdow <jd...@earthlink.net>]

From: "lee" <da...@btinternet.com>

> hello everyone,
> 
> With IP addresses, do the blocks of numbers have any specific meaning or 
> location-specific detail?
> 
> For eg, lots of spam I'm getting sent to one of my domain's addresses 
> with netsky attachments always shows 203.221 as the first two IP blocks 
> when I look at the received header. The actual apparent sender address 
> is always different but often <something>@hotmail.com
> 
> I don't know if such knowledge would then allow me to (safely) set a 
> filter or rule somewhere in my cpanel or spam assassin to just discard 
> any mail from that person(s).
> Ideally, I would like to set a filter(s) in my cpanel 9 hosting to just 
> discard based on one or more rules, but the email filtering seems quite 
> inflexible and basic.
> 
> I do have avast! virus scanning on my pc which always picks up and warns 
> of the incoming nasty, but I'm trying to avoid such emails getting 
> through my domain in the first place, even if I was to manage 
> configuring spam assassin to flag them as SPAM.
> 
> Thanks a lot,
> lee

A simple "whois" query indicates this is a set of addresses "owned"
by Comindico in Oz. If you don't have "whois" handy visit the
http://www.dnsstuff.com/ site and play there. Whois is on the left.
{^_^}