----- Original Message ----- 
From: "Dan Bullock" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, February 21, 2004 10:29 AM
Subject: Re: Permitting email only from designated domain server


>
> I suppose I could give anything from an ebay mail server +50 points and
> score anything from an [EMAIL PROTECTED] email address with say 25 points.  I
> think that would have the effect I'm looking for. ?
>
> Dan
>
> Matthias Fuhrmann wrote:
>
> >On Sat, 21 Feb 2004, Dan Bullock wrote:
> >
> >
> >
> >>My explanation wasn't very well.  My intent is to be able to score those
> >>phishing emails that pretend to be ebay emails and ask for their ebay
> >>login etc.
> >>
> >>All ebay emails should come from an ebay email server. So I want to
> >>score any email that claims to be from ebay and does not originate from
> >>an ebay email server.
> >>
> >>Does that explain my intent a bit better?
> >>
> >>
> >
> >yes, it does. but SPF (Sender Policy Framework) isnt yet available within
> >SA. so i dont have a clue to get those pseudo ebay spammer.
> >maybe you can use trusted_network on those ebay mx servers, preventing
> >extra points from these DNS blacklist request.
> >
> >sorry, not much...
> >
> >regards,
> >Matthias
> >
> >
Try a meta rule - there's lots of help on the rules wiki for the format.
Basically:

header __ NO_EBAY_SERVER    blah, blah
header __EBAY_ADDR                blah, blah
meta EBAY_PHISH    __EBAY_ADDR && __ NO_EBAY_SERVER
description        blah, blah
score        blah, blah

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