Re: [Exim] dnslists modification (2nd time)

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Autor: Wakko Warner
Datum:  
To: exim-users
Betreff: Re: [Exim] dnslists modification (2nd time)
> > Usage:
> >     deny dnslists = some.blacklist.org!=127.0.0.3,127.0.0.4

> >
> > This is only an example. This means that if the IP is on the blacklist and
> > matches the list, it will fail (thus will NOT deny).
> >
>
> I'm not sure I see the point. Can you describe how this is better than:
>
> deny   dnslists = some.blacklist.org
>        !dnslists = some.blacklist.org=127.0.0.3,127.0.0.4

>
> As best I can tell, this does the same thing; if the host is in the
> blacklist, deny, UNLESS the blacklist result was 127.0.0.3 or 127.0.0.4.


If you're using a single blacklist, it really doesn't do anything different.
However, I'm not using a single blacklist.

Something like:
    deny dnslists = sbl.spamhaus.org : \
            list.dsbl.org : \
            dnsbl.njabl.org!=127.0.0.3 : \
            relays.ordb.org


Without the patch, I'd have to write:
    deny dnslists = sbl.spamhaus.org : \
            list.dsbl.org
    deny !dnslists = dnsbl.njabl.org=127.0.0.3
          dnslists = dnsbl.njabl.org
    deny dnslists = relays.ordb.org


Which looks easier to maintain?

I didn't put the message = lines in there or if you want to exclude some
hosts from rbl checks.

Does this make it any clearer?

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