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Author Topic: "RDNS_DYNAMIC3" score - SpamAssassin  (Read 1562 times)
opsystem
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« on: Friday 14 December 2018, 11:50:20 pm »

Hello all,

I'm on EFW 3.3.0 with SMTP proxy + antispam enabled. Incoming messages get obviously scanned like this:

Code:
X-Spam-Status: No, score=3.529 tagged_above=0 required=4 tests=[
........

RDNS_DYNAMIC3=1.5,

.......]
autolearn=no

Now I want to change that RDNS_DYNAMIC3=1.5 (I don't want clients to be discriminated if they send emails from dynamic IPs). But I can't figure out how and where to edit it. I've tried to add:

Code:
score RDNS_DYNAMIC 0
score RDNS_DYNAMIC3 0

in /etc/spamd/local.cf.tmpl, but it has no effects. I know that the main SA files are in /var/lib/spamassassin/3.003002/updates_spamassassin_org but I doubt that's the right place for customizations.

Any clues?
Thanks for helping me
Gabriele
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opsystem
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« Reply #1 on: Saturday 15 December 2018, 12:10:27 am »

Ok, this seems working as a workaround:

/var/lib/spamassassin/3.003002/spamassassin_emaillab_jp/20_head_tests.cf
Code:
meta RDNS_DYNAMIC3 ( __LAST_UNTRUSTED_RELAY_NO_AUTH && !RDNS_DYNAMIC && !__RDNS_DYNAMIC_BL && !__RDNS_STATIC2 && !__RDNS_STATIC && __RDNS_DYNAMIC_S25R )
describe RDNS_DYNAMIC3 Delivered to trusted network by host with dynamic-looking rDNS
score RDNS_DYNAMIC3 0.0

##############################################################################

This seems to survive reboots, howerver I'm not convinced at all!
 Huh  Huh  Huh  Huh
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Dark-Vex
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« Reply #2 on: Monday 07 January 2019, 07:26:31 pm »

Hi,

is better if you revert back the modification, you will lost it in case of Endian updates spamassassin.
If you want to add custom scores, please add it inside the file /var/efw/spamassassin/localcf.custom.tmpl (create it if doesn't exist), after placing your custom scores you should restart the smtp proxy with the command:
jobcontrol restart smtpscan --force

Daniele
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opsystem
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« Reply #3 on: Wednesday 09 January 2019, 09:35:03 am »

Hi Daniele, thanks for your answer, I know that Iíll loose my changes when I upgrade, but on EFW 3.3 Iíve never found the right place for the SA custom file.

  • Thereís no updated documentation
  • Using any of these files has no effects at all:

    • /var/efw/spamassassin/localcf.custom.tmpl
    • /var/efw/spamassassin/local.cf.tmpl
    • /var/efw/smtpscan/localcf.custom.tmpl


So they are not used.

Honestly Iíve no time to try every combination of paths and filenames, nor to debug the SA loading routines, so I hope that someone will post the right solution.

As a side note, these are the files that are loaded by SA:

Code:
spamassassin -D --lint 2>&1 | grep using
Jan  8 23:19:40.808 [4857] dbg: ignore: using a test message to lint rules
Jan  8 23:19:40.808 [4857] dbg: config: using "/etc/spamassassin" for site rules pre files
Jan  8 23:19:40.810 [4857] dbg: config: using "/var/lib/spamassassin/3.003002" for sys rules pre files
Jan  8 23:19:40.810 [4857] dbg: config: using "/var/lib/spamassassin/3.003002" for default rules dir
Jan  8 23:19:40.811 [4857] dbg: config: using "/etc/spamassassin" for site rules dir
Jan  8 23:19:40.919 [4857] dbg: config: using "/var/lib/spamassassin/3.003002/spamassassin_emaillab_jp/20_body_tests.cf" for included file
Jan  8 23:19:40.922 [4857] dbg: config: using "/var/lib/spamassassin/3.003002/spamassassin_emaillab_jp/20_head_tests.cf" for included file

[...]

Jan  8 23:19:41.507 [4857] dbg: config: using "/var/lib/spamassassin/3.003002/updates_spamassassin_org/local.cf" for included file
Jan  8 23:19:41.508 [4857] dbg: config: using "/var/lib/spamassassin/3.003002/updates_spamassassin_org/regression_tests.cf" for included file

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opsystem
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« Reply #4 on: Wednesday 09 January 2019, 10:57:55 am »

Ok, here is one ďalmostĒ solution Iíve found:

1. Open /etc/spamassassin/local.cf.tmpl

2. Change:

Code:
#include ď/var/efw/smtpscan/local_cf.custom.tmplĒ

to:

Code:
include /var/efw/smtpscan/local_cf.custom.tmpl

(quotes must be removed)

Now you can create the /var/efw/smtpscan/local_cf.custom.tmpl file and put your customization in there. This seems to be effective on emaillab_jp scores too.

Note: Iím not sure that the local.cf.tmpl edit will persist upon the EFW upgrade

Cheers  Cool
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