Re: [Exim] RBL detection in Exim 4 router?

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Autor: Dave C.
Data:  
A: Matt Bernstein
CC: exim-users
Assumpte: Re: [Exim] RBL detection in Exim 4 router?
On Tue, 11 Jun 2002, Matt Bernstein wrote:

> Hi, me again trying to bend Exim in silly ways :)
>
> I'd like to customise the reject I send when recipients don't verify to be
> more rude to clients listed in $my_preferred_rbl_lists. Basically I'd like
> instead of saying "that address doesn't work" to say "I don't want any
> mail from you". I guess it's cosmetic, but given that I've already done
> the lookup it's not going to cost me anything extra. Valid recipients will
> receive the mail tagged with an "X-RBL-Warning" header added by one of my
> ACLs.
>
> So I tried this as my last "real" router (I have one which should only be
> run when explicitly called from a different one after this..).
>
> spam_baduser_reject:
>   driver = redirect
>   retry_use_local_part
>   allow_fail
>   data = :fail: \
>    ${if def:h_x-rbl-warning:{$h_x-rbl-warning: or mail abuse@REAL_DOMAIN} \
>         {unrouteable address}}

>
> ..but of course, def:h_x-rbl-warning: is never true at this stage :-/
>
> So, is there a way of doing this using a router, or do I have to do dark
> things with my already-fairly-complicated ACLs? If the latter, is it
> something like
>
>   deny    message = "sod off Mr ORDB-listed host"
>     hosts = +rbl_hosts
>     dnslists = relays.ordb.org
>     !verify = recipient



Actually, this would only deny if the hosts was in rbl_hosts, was listed
in relays.ordb.org, *and* the recipient was unverifiable.

If thats what you want, then thats exactly what this will do.