[clug] checking mail daemon

Martin Pool mbp at sourcefrog.net
Mon Apr 26 06:42:40 GMT 2004

On 19 Apr 2004, Marek Samoc <mjs111 at rsphy1.anu.edu.au> wrote:
> On Mon, 19 Apr 2004, david howe wrote:
> > Hi folks
> >
> > for lack of a more desriptive subject, here is my question(s) :)
> >
> > I am running exim on a debian box and although my logs show nothing
> > greatly untoward, I am wondering if there are ways that the less
> > desirable elements on the net can be using my box to relay or originate
> > spam?

Read the manual that comes with Exim?

Any recent mailserver ought to be secure by default.

> > I know spam is a subject we generally wish wasn't, so whilst on the
> > subject, does anyone have a good suggestion to restrict the volume of
> > spam at the server end?
> Check places like http://www.ordb.org and http://dsbl.org for online
> testing tools of open relays and for info of using RBL lists to reduce the
> amount of received spam. These are the two lists that I like but YMMV.
> Alas, osirusoft is no more...

Samba.org uses 

        reject_rbl_client opm.blitzed.org,
        reject_rbl_client xbl.spamhaus.org,
        reject_rbl_client dnsbl.njabl.org,
        reject_rbl_client dnsbl.sorbs.net

and it works pretty well.

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