[Mimedefang] RBL's
Damrose, Mark
mdamrose at elgin.edu
Tue May 18 07:28:58 EDT 2004
> -----Original Message-----
> From: Jason Gurtz [mailto:jason at jasongurtz.com]
> Sent: Monday, May 17, 2004 11:09 PM
> To: mimedefang at lists.roaringpenguin.com
> Subject: Re: [Mimedefang] RBL's
>
>
> On 5/17/2004 19:23, -ray wrote:
>
> > On Mon, 17 May 2004, -ray wrote:
> >
> >> Also should i just use a sendmail dnsbl, or let
> Spamassassin do the dnsbl
> >> queries? There are advantages and disadvantages either
> way. Where in
> >> Spammassin can i disable all the public RBL's but only
> leave access to my
> >> local RBL?
>
> I've had very good luck with spamhaus rbl's, both sbl and
> xbl. Compared
> to other rbl lists spamhaus seems sane in who they black hole.
>
Second that. Spamhaus is my first rbl in sendmail. It blocks over
60% of the mail that gets rejected - I've not seen any false positives.
I have had to whitelist some from other lists, but never from spamhaus.
dnl # DNSBL_MAP forces dnsbl lists to use A record instead of trying AAAA
first.
define(`DNSBL_MAP', `dns -R A')dnl
FEATURE(dnsbl,`sbl-xbl.spamhaus.org', `$&{client_addr}" blocked - see
http://www.spamhaus.org/query/bl?ip="$&{client_addr}')dnl
FEATURE(dnsbl,`list.dsbl.org', `$&{client_addr}" blocked - see
http://dsbl.org/listing?ip="$&{client_addr}')dnl
FEATURE(enhdnsbl, `dnsbl.sorbs.net', `$&{client_addr}" blocked - see
http://www.dnsbl.sorbs.net/cgi-bin/lookup?IP="$&{client_addr}', `',
`127.0.0.2.', `127.0.0.3.', `127.0.0.4.', `127.0.0.10.')
dsbl.org is the one that's given me the most problems (needing to whitelist
people). They will remove anyone who answers mail sent to postmaster. That
seems to be too big a hurdle for a some places.
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