Re: Advice on MTA blacklist

Quoting "R.Smits" <R.Smits@tudelft.nl>:

> Jeff Chan wrote:
> > Quoting Richard Smits <R.Smits@tudelft.nl>:
> >
> >> Thanks for all the advice.. I think we will be using spamhaus. I am
> >> running a test and it blocks a lot of spam. Currently I use the
> >> sbl.spamhaus and pbl.spamhaus
> >> Is this wise, or should I also use the xbl and switch to zen.spamhaus....?
> >
> > Please do not use the individual Spamhaus lists at the MTA level. Please
> use
> > zen.spamhaus.org

> Why not ?
> We use : sbl-xbl.spamhaus.org now. It does not include the PBL (policy
> Block List)
>
> We serve a big university and we cannot afford False Positives.
> I can imagine that someone one the PBL (home user) runs a small
> mailserver and cannot connect to our server ?
>
> Or am I seeing trouble that is not there :-)
>
> I do not know the PBL as good... but I like the idea.

The original poster was using SBL and PBL and was considering using XBL. In that case, it certainly makes more sense to use zen since it would mean one third as many DNS queries compared to querying each list individually. If you can't use PBL, then please continue using sbl-xbl as that cuts the queries in half.

Cheers,

Jeff C. Received on Wed Oct 10 08:58:59 2007