Hi Gang
I am part of the SWINOG Anti-Spam Blacklists team which are used by a
handfull of swiss ISP.
Very early, we also started adding IPv6 addresses to the blacklist but
soon noticed that there is a potential problem with IPv6 and wildcard
entries.
Let's assume 2.0.0.0/24 is full of abusers and you decide to throw their
whole /24 in the Blacklist:
*.0.0.2.dnsbl.example.org 300 in TXT "Bunch of abusers, /24 listed"
This would wrongfully block an awful lot of IPv6 addresses!
To avoid this issue, we use two different dns zones:
*.0.0.2.dnsbl.example.org 300 in TXT "Bunch of abusers, /24 listed"
*.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.dnsbl.example.org in TXT
"Spamer /64 listed"
Well, but now I need to tell SpamAssassin to only query IPv4 addresses
on the first zone and only query IPv6 addresses on the ip6 one.
I was not able to find a way to achieve this. Did I overlook something?
Mit freundlichen Grüssen
-Benoît Panizzon-
--
I m p r o W a r e A G - Leiter Commerce Kunden
______________________________________________________
Zurlindenstrasse 29 Tel +41 61 826 93 00
CH-4133 Pratteln Fax +41 61 826 93 01
Schweiz Web http://www.imp.ch
______________________________________________________
I am part of the SWINOG Anti-Spam Blacklists team which are used by a
handfull of swiss ISP.
Very early, we also started adding IPv6 addresses to the blacklist but
soon noticed that there is a potential problem with IPv6 and wildcard
entries.
Let's assume 2.0.0.0/24 is full of abusers and you decide to throw their
whole /24 in the Blacklist:
*.0.0.2.dnsbl.example.org 300 in TXT "Bunch of abusers, /24 listed"
This would wrongfully block an awful lot of IPv6 addresses!
To avoid this issue, we use two different dns zones:
*.0.0.2.dnsbl.example.org 300 in TXT "Bunch of abusers, /24 listed"
*.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.dnsbl.example.org in TXT
"Spamer /64 listed"
Well, but now I need to tell SpamAssassin to only query IPv4 addresses
on the first zone and only query IPv6 addresses on the ip6 one.
I was not able to find a way to achieve this. Did I overlook something?
Mit freundlichen Grüssen
-Benoît Panizzon-
--
I m p r o W a r e A G - Leiter Commerce Kunden
______________________________________________________
Zurlindenstrasse 29 Tel +41 61 826 93 00
CH-4133 Pratteln Fax +41 61 826 93 01
Schweiz Web http://www.imp.ch
______________________________________________________