Forum Moderators: phranque

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Retreat in War on Spam Mail

Major filtering technique to work no longer

         

Tigrou

5:34 pm on Feb 4, 2005 (gmt 0)

10+ Year Member



[msnbc.msn.com ]

My comments on this can't be posted due to TOS #3.

pendanticist

5:39 pm on Feb 4, 2005 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



SendSafe users "rent" lists of compromised home computers, which are then used as an army of e-mail spam machines. No hard figures are available, but Internet security experts believe that SendSafe and a similar program called Direct Mail Sender are used by a majority of spammers.

On a very related note: [webmasterworld.com...]

It collects e-mail addresses directly from any e-mail server especially from most of the free e-mail servers such as hotmail.com etc.

Grrrrr....

py9jmas

5:42 pm on Feb 4, 2005 (gmt 0)

10+ Year Member



make their zombie-sent e-mail appear as if it were sent directly from an Internet service provider's systems

I was under the impression (from Slashdot's writeup) that it did route the email via the ISP. It is now easy for the ISP to monitor/restrict. This is A Good Thing. If the ISP fails to live up to its responsibilites, its mail servers should be blacklisted until they do.

sun818

5:44 pm on Feb 4, 2005 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



I don't see why a programmer can't build a spam filter as smart as a human. Maybe the Google phD can tackle it. Bayesian filter is not working very well now.

pendanticist

6:10 pm on Feb 4, 2005 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



sun818, check out Message #9. [webmasterworld.com...] where member Reflect states:

I do lead AV administrator for our sector. I was charged with SPAM reduction. I just got a solution in place. An unsuspected benifit....if the e-mail header of the e-mail does not conform to RFC standards it gets tossed. In talking with Symantec they state over 90% of e-mail distributed viruses have....invalid headers. So before SOPHOS, which we use at the SMTP gateway, or Symantec, which we use at the desktop, have DATs/DEFs for a new strain the SPAM solution stops the new strain from even getting in our front door.

We used to get hammered with Beagle/Bagle and Sober when new variants came out. Since we put this up we had not one report of infestation.