On 07.04.08 12:17, Karsten Bräckelmann wrote:
> From: Karsten Bräckelmann
> Date: Mon, 07 Apr 2008 12:17:36 +0200
> Subject: Re: Low Scores on Bounce Backs
> To: users@spamassassin.apache.org
>
> On Sun, 2008-04-06 at 23:25 -0400, Jeff Koch wrote:
> > Thanks for the reply. I thought the purpose of adding the
> >
> > 'whitelist_bounce_relays mailserver_name.com'
> >
> > in local.cf was so that SA could assign a higher score to bounces that
> > never originated at your own mailserver. Thereby identifying return address
> > forgery.

>
> Actually quite the opposite. Rather than increasing a score, it is
> used to 'rescue' legitimate bounce messages. See the docs [1].
>
> Basically, it serves two purposes: (a) Setting this option enables the
> VBounce plugin, and (b) it prevents legit bounces from being marked
> with the ANY_BOUNCE_MESSAGE and friends rules.


> Of course, we can't stop you from assigning a custom, absurdly high
> score to ANY_BOUNCE_MESSAGE to abuse the existing score based filtering.


assign a score about 1 doesn't abuse the filtering

> However, the purpose of this plugin and the low default score is to not
> weigh in into classifying spam, but to provide a nice handler (see my
> previous post) to identify bounces and treat them specially.


bounces that contain original spam as mime attachment could
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