On 5/5/2010 12:00 PM, Laurent CARON wrote:
Hi,
I'm basically trying to protect my users from the following:
Spam
- Sent from accounts hosted on freemail providers (yahoo, ...)
- Originating from AfriNIC ranges
- Tergetted at several dozen of users
The headers look like this:
Received: from [41.207.213.162] by web1104.biz.mail.sk1.yahoo.com via HTTP;
Tue, 04 May 2010 14:44:20 PDT
It is fairly trivial to block suck things via a header access map
if
/^(Received|X-((Origin(ating)?|Client|MDRemote|Sender)-?IP|(Client|Remote_)Addr|PHP-Script)):/
/\b(41\.\d+\.\d+\.\d+)\b/ REJECT regional junk 001 #Africa
endif
Some of my users receive a few legitimate emails from Africa.
Apart from using a policy server, can postfix natively be configured to
acheive this goal ?
Policy servers don't have access to headers. Header_checks
apply to all mail with no exceptions.
Sounds as if you need amavisd-new + SpamAssassin.
-- Noel Jones
