Re: Re [3]: [exim] [NEWBIE]Stop Spammers - How - Confused

On Tue, 21 Sep 2004 11:38:21 +0200, Giuliano Gavazzi
<eximlists@???> wrote:
> At 3:56 am -0500 2004/09/21, exim@??? wrote:
> >Hi.
> >
> >Thanks for all the help.
> >
> >Will commenting out the line
> >
> >host_auth_accept_relay = *
> >
> >prevent unauthorized users, i.e. spammers, from routing their messages through
> >this machine (in combination with
>
> I don't know exim 3 at all (never used it!), but I guess it will. I
> just don't see what's the point of it anyway, as spammers will not be
> able to relay anyway unless they know a user/password for your system.

That line tells Exim which hosts it should allow to relay if those
hosts present authentication. A summary of the relevant options is:

hosts_accept_relay = <list of hosts you trust to relay without auth>
hosts_auth_accept_relay = <list of hosts who can relay if they authenticate>

The former will probably include localhost and your local network.

The latter can be '*' if you don't know where your authenticated
clients are coming from.

Please, upgrade to Exim 4 - you'll get much more help. Your software
is over 2 years old.

Peter