Discussion:
Upcoming Release: Contribution?
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Patrick Ben Koetter
2016-02-15 18:10:23 UTC
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Mark,

we've developed a feature which lets amavis query a DNSBL white/blacklist and
depending on the DNS servers reply, lets amavis add the IP in question to a
policy bank.

The feature is still in testing here. We'd like to contribute it as patch. Are
you interested?

***@rick
--
[*] sys4 AG

https://sys4.de, +49 (89) 30 90 46 64
Franziskanerstraße 15, 81669 München

Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263
Vorstand: Patrick Ben Koetter, Marc Schiffbauer
Aufsichtsratsvorsitzender: Florian Kirstein
Zhang Huangbin
2016-02-16 03:15:57 UTC
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Post by Patrick Ben Koetter
we've developed a feature which lets amavis query a DNSBL white/blacklist and
depending on the DNS servers reply, lets amavis add the IP in question to a
policy bank.
Just curious, why not query DNSBL in Postfix (before-queue)?

----
Zhang Huangbin, founder of iRedMail project: http://www.iredmail.org/
Time zone: GMT+8 (China/Beijing).
Looking for opportunity to move from China to another country.
Patrick Ben Koetter
2016-02-16 06:31:04 UTC
Permalink
Post by Zhang Huangbin
Post by Patrick Ben Koetter
we've developed a feature which lets amavis query a DNSBL white/blacklist and
depending on the DNS servers reply, lets amavis add the IP in question to a
policy bank.
Just curious, why not query DNSBL in Postfix (before-queue)?
In this case the intention is not to block an IP, but to make a policy
decision e.g. "if the IP is listed, amavis should not scan it for SPAM" or "if
the IP is listed, it should use a policy bank with higher SPAM scores".

The DNS(BL) mechanism is only used as a network based lookup table. Easy to
distribute and it doesn't require a reload of all amavis instances 'reading'
an IP list.

***@rick
--
[*] sys4 AG

https://sys4.de, +49 (89) 30 90 46 64
Franziskanerstraße 15, 81669 München

Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263
Vorstand: Patrick Ben Koetter, Marc Schiffbauer
Aufsichtsratsvorsitzender: Florian Kirstein
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