Re: [Exim] Nice way to cut down on spam.

Erm, you mean something like the 'sender_reject' option, to block email
from specific envelope senders? Or maybe the 'host_reject' option to
block specific hosts? Either of which can refer to a plain file or use
expansion to do lookups in a variety of formats.. dbm.. cdb.. ldap.. ...


On Tue, 14 Aug 2001, Juha Saarinen wrote:

> On Mon, 13 Aug 2001, Eric Bullen wrote:
>
> > This is hardly anything to get confused about. I appreciate the concern
> > though- with a 99.5% hitrate, I'll take my chances (which is hardly one).
> > Wait- it's down to 99% since Juha replied to me, and that bounced.
>
> Risking another mail bounce here, but... the reality of spam is that next
> to none comes directly from .cn, .kr or .jp. In the vast majority of cases
> it's US spammers relaying via Asian servers.
>
> If you are the only user on your system, or the other users are in total
> agreement with you, refusing mail from various IP blocks is fine. However,
> it's a very blunt weapon, as you've noticed, because the NIC information
> doesn't always tell you exactly where a certain IP range has been
> allocated. You are guaranteed to block mail that you want to receive.
>
> Unfortunately, I can't think of a good alternative, short of monitoring
> mail logs and keeping a manual blacklist.
>
> Hey... that would be a nice feature for Exim... a simple way to create and
> maintain a file or database of blocked senders. I don't mean keeping the
> addresses in exim.conf -- wouldn't it be good to have an "exim_blocked"
> file (e.g) for lookups, without exim.conf ju-ju?
>
>

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