Selectively disabling RBL services in SpamAssassin

[Lindsay Haisley <fm...@fmp.com>]

I'm setting up SpamAssassin 3.1.8 to run with the Courier MTA (0.55.1)
on a server running Gentoo Linux.  Courier provides a facility to reject
email in the SMTP dialog using queries to RBL lists based on the
connecting IP address, which prevents the MTA from ever having to deal
with such spams, or issue DSNs to forged addresses, etc.

Many of the same RBL services are configured into 20_dnsbl_tests.cf
in /usr/share/spamassassin.  There's no need for me to query these RBLs
twice and I'd like to selectively disable some of these tests
in /etc/spamassassin/local.cf, while leaving others enabled.  I can set
skip_rbl_checks to 1 to disable _all_ these tests, but I only want to
disable some of them, not all of them.  I can comment out the tests
in /usr/share/spamassassin/20_dnsbl_tests.cf, however this file gets
re-written when SpamAssassin gets upgraded, so I need to do this in one
of the files in /etc/spamassassin.

The Mail::SpamAssassin::Conf is silent on this issue.  Is there a way to
do this?

-- 
Lindsay Haisley       | "In an open world,    |     PGP public key
FMP Computer Services |    who needs Windows  |      available at
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http://www.fmp.com    |                       |

Re: Selectively disabling RBL services in SpamAssassin

[Theo Van Dinter <fe...@apache.org>]

On Mon, Jun 11, 2007 at 09:25:32PM -0500, Lindsay Haisley wrote:
> The Mail::SpamAssassin::Conf is silent on this issue.  Is there a way to
> do this?

Set the scores for all rules querying the RBLs you want to disable to 0.

-- 
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"He was like Tigger on 'ludes." - Carol Herre

Re: Selectively disabling RBL services in SpamAssassin

[Matt Kettler <mk...@verizon.net>]

Lindsay Haisley wrote:
> I'm setting up SpamAssassin 3.1.8 to run with the Courier MTA (0.55.1)
> on a server running Gentoo Linux.  Courier provides a facility to reject
> email in the SMTP dialog using queries to RBL lists based on the
> connecting IP address, which prevents the MTA from ever having to deal
> with such spams, or issue DSNs to forged addresses, etc.
>
> Many of the same RBL services are configured into 20_dnsbl_tests.cf
> in /usr/share/spamassassin.  There's no need for me to query these RBLs
> twice and I'd like to selectively disable some of these tests
> in /etc/spamassassin/local.cf, while leaving others enabled.  I can set
> skip_rbl_checks to 1 to disable _all_ these tests, but I only want to
> disable some of them, not all of them.  I can comment out the tests
> in /usr/share/spamassassin/20_dnsbl_tests.cf, however this file gets
> re-written when SpamAssassin gets upgraded, so I need to do this in one
> of the files in /etc/spamassassin.
>
> The Mail::SpamAssassin::Conf is silent on this issue.  Is there a way to
> do this?
>   
Yes, you can zero the scores of the affected rules.

Note, you MUST zero the score of the "base rule" for any multi-rule
RBLs. This rule will have a name starting with a double underscore.

ie: for NJABL the command would be:

score __RCVD_IN_NJABL 0

SA doesn't run rules that are explicitly zeroed out like this.