RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...

2003-01-09 Thread Kami Razvan
What we have done is weigh negatively the sum of those tests for these two
domains (Yahoo, Hotmail).

We have a list of any free domains that we have received mail from.  The
free sites we add 5 to start with. [I can send you the list if you want]

The Hotmail and Yahoo spam are typically caught by a lot of other tests such
as body filters.  Basically we have created a filter for all the URL's that
are used in the spam and weigh them if they occur.  Combination of these has
reduced the spam to almost 1 or 2 a week (even if that).  We do not use
Sniffer.. So far have not found any need for it since we have an extensive
filter file for URL addresses that appear in spam. (I can have it sent to
you if you want).

For Base64 tests we have basically made the weight enough such that if any
other tests are failed, or if it is coming from any free email address then
it will be held for review.

Regards,
Kami

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Mark Smith
Sent: Thursday, January 09, 2003 11:32 AM
To: [EMAIL PROTECTED]
Subject: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...


What is everyone doing about Hotmail, Yahoo, Juno and other web-based mail
systems? It's really a catch-22. Hotmail is so frequently listed on RBL's
and is a large source of spam but it's also a large source of legitimate
email.

They all seem to fail postmaster and abuse so they're already at 6-8 points
on most peoples Junkmail. You can't whitelist them, and the RBL's usually
send them over the edge.

I use Sniffer so I've thought about adding a rule for hotmail, yahoo, etc to
subtract the sum of postmaster and abuse and let message sniffer do some
magic on these sites.

Thoughts?

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RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...

2003-01-09 Thread John Tolmachoff
The way I have it configured, they will end up with a weight of 8 and we
hold at 20, so they would have to fail a test like SPAMCOP or NOXMAIL or one
of our major filters to be held.

John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA  92835
www.reliancesoft.com




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RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...

2003-01-09 Thread David Lewis-Waller
We use Declude standard weights and add 15 for ones that fail
SortMonster tests. We hold on weights over 30 and I don't think we've
caught legitimate mail from these sources for sometime. Our only real
fine tuning was to negative weight some email domains (below). We don't
use any kill lists at all.

MAILFROM -10 CONTAINS @talk21.com
MAILFROM -10 CONTAINS @passport.com
MAILFROM -30 CONTAINS @economist.com
MAILFROM -100 CONTAINS .ft.com
MAILFROM -30 CONTAINS @bbc.co.uk
HEADERS 15 CONTAINS charset=GB2312

David
WiSS Limited

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Mark Smith
Sent: 09 January 2003 16:32
To: [EMAIL PROTECTED]
Subject: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...


What is everyone doing about Hotmail, Yahoo, Juno and other web-based
mail systems? It's really a catch-22. Hotmail is so frequently listed on
RBL's and is a large source of spam but it's also a large source of
legitimate email.

They all seem to fail postmaster and abuse so they're already at 6-8
points on most peoples Junkmail. You can't whitelist them, and the RBL's
usually send them over the edge.

I use Sniffer so I've thought about adding a rule for hotmail, yahoo,
etc to subtract the sum of postmaster and abuse and let message sniffer
do some magic on these sites.

Thoughts?

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RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...

2003-01-09 Thread Mark Smith
That's the problem... Hotmail is on and off of Spamcop every other day.
We bounce at 12 and delete at 20.
Spamcop is at 8 so I'll put in -8 for hotmail which will adjust for the
nopostmaster and noabuse.

 -Original Message-
 From: [EMAIL PROTECTED] 
 [mailto:[EMAIL PROTECTED]] On Behalf Of John 
 Tolmachoff
 Sent: Thursday, January 09, 2003 11:59 AM
 To: [EMAIL PROTECTED]
 Subject: RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...
 
 
 The way I have it configured, they will end up with a weight 
 of 8 and we hold at 20, so they would have to fail a test 
 like SPAMCOP or NOXMAIL or one of our major filters to be held.
 
 John Tolmachoff MCSE, CSSA
 IT Manager, Network Engineer
 RelianceSoft, Inc.
 Fullerton, CA  92835
 www.reliancesoft.com
 
 
 
 
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RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...

2003-01-09 Thread Madscientist
Agreed here - we've been working on various white-rules for these
domains and each attempt has failed due to the amount of actual spam
sourced from these servers.
_M

| -Original Message-
| From: [EMAIL PROTECTED] 
| [mailto:[EMAIL PROTECTED]] On Behalf Of Mark Smith
| Sent: Thursday, January 09, 2003 11:54 AM
| To: [EMAIL PROTECTED]
| Subject: RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...
| 
| 
| I'd stay away from IP's because they can change all of the 
| time. But the problem still is that actual spam comes from those IP's.
| 
|  -Original Message-
|  From: [EMAIL PROTECTED]
|  [mailto:[EMAIL PROTECTED]] On Behalf Of 
| Markus Gufler
|  Sent: Thursday, January 09, 2003 11:48 AM
|  To: [EMAIL PROTECTED]
|  Subject: RE: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...
|  
|  
|  I'm not sure if I'm right with this:
|  Should it be possible to determine a list of IP-ranges from
|  the real outgoung smtp-servers of this popular domains, then 
|  Declude probably can add a new test if this mail (using a 
|  popular from domain) commes from one of this ip-ranges.
|  
|  Even if this ip-ranges are very wide (Class C or B) a lot of
|  spamming servers forging the recipients adress should be caught.
|  
|  Markus
|  
|  
|  
|  
|   -Original Message-
|   From: [EMAIL PROTECTED]
|   [mailto:[EMAIL PROTECTED]] On Behalf Of 
| Mark Smith
|   Sent: Thursday, January 09, 2003 5:32 PM
|   To: [EMAIL PROTECTED]
|   Subject: [Declude.JunkMail] Hotmail, Yahoo, MSN, etc...
|   
|   
|   What is everyone doing about Hotmail, Yahoo, Juno and other 
|   web-based mail systems? It's really a catch-22. Hotmail is so 
|   frequently listed on RBL's and is a large source of spam but it's 
|   also a large source of legitimate email.
|   
|   They all seem to fail postmaster and abuse so they're 
| already at 6-8 
|   points on most peoples Junkmail. You can't whitelist 
| them, and the 
|   RBL's usually send them over the edge.
|   
|   I use Sniffer so I've thought about adding a rule for hotmail, 
|   yahoo, etc to subtract the sum of postmaster and abuse and let 
|   message sniffer do some magic on these sites.
|   
|   Thoughts?
|   
|   ---
|   [This E-mail scanned for viruses by F-Proto Virus Scanner]
|   
|   ---
|   [This E-mail was scanned for viruses by Declude Virus
|  (http://www.declude.com)]
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|  unsubscribe Declude.JunkMail.  The archives can be found at 
|  http://www.mail-archive.com.
|  
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