Patrick Lists put forth on 8/30/2010 4:34 PM:
> Hi,
>
> I got a lot of spam lately from dynamic hosts so gradually I have been
> adding rules to block them with the help of the rules from
> http://gabacho.reto.jp/en/anti-spam/anti-spam-system.html
>
> Unfortunately this type keeps slipping through:
> Received: from 200-161-108-143.dsl.telesp.net.br
>
> My regex foo is pretty non-existant. Does anyone know what regexp line
> would block such a hostname?
/^[12]?[0-9]{1,2}(-[12]?[0-9]{1,2}){3}\.(customer|dsl|dial-up)\.telesp\.net\.br$/
REJECT Generic - Please relay via ISP (telesp.net.br)
That's all one line, TB wrapped it. You may as well just use this.
Over 1600 regex patterns matching generic dynamics and statics. Rejects
all generic dynamics, tags generic statics. Provided with no
warranties, use at your own risk, etc. Has worked well here.
http://www.hardwarefreak.com/fqrdns.regexp
Use in main.cf as:
check_client_access regexp:/etc/postfix/fqrdns.regexp
--
Stan
