AW: AW: [swinog] Whitelist website

2007-03-28 Diskussionsfäden Radek Mrskos
Ok there are some whitelists, but what is it worth, when entries like
*.mail.ru are included? (And who entered this?)

-Ursprüngliche Nachricht-
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Im Auftrag von Matthias Leisi
Gesendet: Dienstag, 27. März 2007 15:47
An: swinog@swinog.ch
Betreff: Re: AW: [swinog] Whitelist website


 Of course, but you got the hostname wrong. It's http://dnswl.swinog.ch aka
 http://antispam.imp.ch/swinog-dnsrbl-whitelist

 But not only Swiss Mailservers, this would be a bit useless :-)

And of course there is also dnswl.org ;-) [Note that dnswl.org data also
includes the Swinog whitelist, updated (ir)regularly.]

-- Matthias (one of [EMAIL PROTECTED])


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Re: AW: AW: [swinog] Whitelist website

2007-03-28 Diskussionsfäden Benoit Panizzon
Am Mittwoch, 28. März 2007 13.32 schrieb Radek Mrskos:
 Ok there are some whitelists, but what is it worth, when entries like
 *.mail.ru are included? (And who entered this?)

As far as I rememver we were contacted by the mail mistress of mail.ru who 
asked for those ranges to be entered.

I know there is a lot of spam around comming from this range, but as far as we 
have seen they all had correct Received: or X-Origination-IP: headers before 
the mail.ru mailserver ip address.

This means our spamtraps would blacklist the right addresses of the 
end(ab)users and also spamassassin is able to score them correctly.

Mit freundlichen Grüssen

Benoit Panizzon
-- 
I m p r o W a r e   A G-System Services
__

Zurlindenstrasse 29 Tel  +41 61 826 93 00
CH-4133 PrattelnFax  +41 61 826 93 01
Schweiz Web  http://www.imp.ch
__


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AW: AW: AW: [swinog] Whitelist website

2007-03-28 Diskussionsfäden Radek Mrskos
Ok, but this is exactly what do not belongs to this list. *.mail.ru (many
others also) is a spamer domain.
If the postmaster of *.rr.com, *.net.br, *.com.br calls you to enter his
ranges, will you enter it?

Cheers

Radek MrskosEmail[EMAIL PROTECTED]
volume.ch   Tel:+41 43 534 40 24
Baechlerstr. 12 Mob:+41 79 219 68 66
CH-8802 Kilchberg   Fax:+41 86079 2196 866
PGP:0x8CB69F6D  URL:http://volume.ch

PS: Was the voice of this mistress at least erotic? ;)

-Ursprüngliche Nachricht-
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Im Auftrag von Benoit Panizzon
Gesendet: Mittwoch, 28. März 2007 13:49
An: swinog@swinog.ch
Betreff: Re: AW: AW: [swinog] Whitelist website

Am Mittwoch, 28. März 2007 13.32 schrieb Radek Mrskos:
 Ok there are some whitelists, but what is it worth, when entries like 
 *.mail.ru are included? (And who entered this?)

As far as I rememver we were contacted by the mail mistress of mail.ru who
asked for those ranges to be entered.

I know there is a lot of spam around comming from this range, but as far as
we have seen they all had correct Received: or X-Origination-IP: headers
before the mail.ru mailserver ip address.

This means our spamtraps would blacklist the right addresses of the
end(ab)users and also spamassassin is able to score them correctly.

Mit freundlichen Grüssen

Benoit Panizzon
-- 
I m p r o W a r e   A G-System Services
__

Zurlindenstrasse 29 Tel  +41 61 826 93 00
CH-4133 PrattelnFax  +41 61 826 93 01
Schweiz Web  http://www.imp.ch
__

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Re: AW: AW: AW: [swinog] Whitelist website

2007-03-28 Diskussionsfäden Matthias Leisi


Radek Mrskos wrote:

 Ok, but this is exactly what do not belongs to this list. *.mail.ru (many
 others also) is a spamer domain.
 If the postmaster of *.rr.com, *.net.br, *.com.br calls you to enter his
 ranges, will you enter it?

194.67.23.0/24 does not equal the full set of *.mail.ru hostnames.

Similarly, dnswl.org contains three /24s for uol.com.br (see
http://www.dnswl.org/search.pl?s=3633). Now this is not a statement that
uol.com.br is all nice and cosy, but it's a statement of the fact that
the postmaster for uol.com.br told us that these are the ranges for the
mailservers (and we verified that using eg senderbase.org).

Since such ranges are usually not as trustworthy as /32s of
well-respected mailserver operators, dnswl.org lists such ranges with a
score of none; for all practical reasons, this should translate into
do not greylist, since there is most likely a legitimate mailserver at
the other end who will retry anyway.

Yes, whitelisting incurs the risk of missing some spam. But this risk is
usually lower than catching a non-spam in a spamfilter.

-- Matthias

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[swinog] dnswl.org ?

2007-03-28 Diskussionsfäden Per Jessen
Matthias Leisi wrote:

 194.67.23.0/24 does not equal the full set of *.mail.ru hostnames.
 
 Similarly, dnswl.org contains three /24s for uol.com.br (see
 http://www.dnswl.org/search.pl?s=3633). Now this is not a statement
 that uol.com.br is all nice and cosy, but it's a statement of the fact
 that the postmaster for uol.com.br told us that these are the ranges
 for the mailservers (and we verified that using eg senderbase.org).
 
 Since such ranges are usually not as trustworthy as /32s of
 well-respected mailserver operators, dnswl.org lists such ranges with
 a score of none; for all practical reasons, this should translate
 into do not greylist, since there is most likely a legitimate
 mailserver at the other end who will retry anyway.

This sounds like a pretty good idea, but judging by the size of the
rbldnsd file, it's not very popular?  Only 4317 entries. 


/Per Jessen, Zürich

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