Whitelisting problem

[Julian Field]

At 09:11 08/01/2003, you wrote:
>How does whitelisting on IP work?

It spots the fact the pattern you are matching only contains digits and no
letters. If so, it matches against the IP address where the SMTP connection
is coming from.

>  Do we need to use the same file and
>format as we do with domain names??

Yes. You can use patterns such as
1. Full IP addresses
         194.109.9.99
2. IP address prefixes
         194.109.
would match 194.109.*.*
3. Regular expressions using IP addresses
         /194.109.(9|10|11|12)./
would match 194.109.9.* - 194.109.12.*

If you don't know much about regular expressions then type "man perlre" for
a very detailed explanation.

>From:           194.109.9.99                yes
>
>
>On Tue, 7 Jan 2003, Julian Field wrote:
>
> > At 16:50 07/01/2003, you wrote:
> >
> > >IBM is a partner of ours so I have whitelisted ibm.com
> > >
> > >But now some spammer is forging both the envelope and header to look like
> > >it cam from ibm.com
> > >
> > >The spammer appears to be creating random addresses ending in @ibm.com
> > >
> > >Is my only choice to remove ibm.com from the whitelist?
> >
> > If ibm.com only use a few outgoing mail servers, you could whitelist their
> > IP addresses instead.
> > --
> > Julian Field
> > www.MailScanner.info
> > MailScanner thanks transtec Computers for their support
> >
> >
>
>
>--
>This message has been scanned for viruses and
>dangerous content by MailScanner, and is
>believed to be clean.

--
Julian Field
www.MailScanner.info
MailScanner thanks transtec Computers for their support