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Server side Cerebrus?

 [1/6] from: hallvard::ystad::helpinhand::com at: 29-Nov-2002 22:21


Hi This is just a thought: Since Cerebrus has this high percentage of accuracy for spam filtering, why not make a server side Cerebrus that could a) filter away spam for POP clients (before they are fetched, that is), and b) filter away spam for the mail server itself? The Helpinhand.com website has been down for two days now, due to spam relaying on our mailserver. That's why I suddenly came to think about this... (Fixed the settings, we no longer relay spam.) ~H

 [2/6] from: rebollist2:juicybits at: 29-Nov-2002 16:20


My dream spam killer would be server-side, to be set up and maintained by webmasters and ISPs. Multiple spam killer servers would be collaborative in spam detection. Researching today, I finally see it starting to happen at http://razor.sourceforge.net/ , in concert (eg) with spamassassin.org . A widespread network of servers will detect and report spam broadcasts, then automatically kill spam within minutes of arriving at the pop. I have other ideas too (eg a whitelist verification and registration service). A spamkiller would have to keep evolving to stay ahead of spamming technology, but I'm very excited to think that these first few features alone could be an excellent start for a killer, spamkiller app. What's also cool is that, even tho server-side apps would work best and collaborate best, client level apps could still work and even colloborate with other servers, not to mention help the whole system gain critical mass more quickly. I'm afraid that the only downside for rebol would be that the system could work so well at the 3rd party (eg rebol app) level that such spamkiller systems would eventually get written into exising pop servers. But before then, I really think this could be *the* hope for killing spam. --Ken. At 10:21 PM 11/29/02 +0100, you wrote:
>Hi > >This is just a thought: > >Since Cerebrus has this high percentage of accuracy for spam filtering, why not make a server side Cerebrus that could a) filter away spam for POP clients (before they are fetched, that is), and b) filter away spam for the mail server itself?
____________________________ ____________________________ Ah, you hate Microsoft too! So comrade, ven do vee plan to defect?

 [3/6] from: yeksoon:myrealbox at: 30-Nov-2002 14:03


Just thought I add that for server side filtering, there must be additional option to configure such that an email will be sent to the receipient and/or sender to inform them of the filtering. This is to avoid scenarios of mistaken identity and provide way for the user to contact the sender to re-send the email. YekSoon

 [4/6] from: rebollist2:juicybits at: 30-Nov-2002 15:03


At 02:03 PM 11/30/02 +0800, you wrote:
>Just thought I add that for server side filtering, there must be additional option to configure such that an email will be sent to the receipient and/or sender to inform them of the filtering. > >This is to avoid scenarios of mistaken identity and provide way for the user to contact the sender to re-send the email. > >YekSoon
One nice way to handle email not determined to be positively spam ('gray mail') is to 1) email the list of graymail to the recipient; 2) also list the major headers on a webmail page (ie like hotmail), with checkbox options for each email. Options would be 1) whitelist the sender, 2) pass the email on to the recipient's pop box, or 3) (an option I haven't seen in a graymail system yet) could be for the system to reply with a notice to the sender, requesting them to resend their email with a password in the subject or body. The password that the graymail system (manually or automatically) sends could be in gif form, for added security against spam bots. ____________________________ ____________________________ Ah, you hate Microsoft too! So comrade, ven do vee plan to defect?

 [5/6] from: gchiu:compkarori at: 1-Dec-2002 12:50


POP servers are designed to be exactly that... a simple protocol that runs on many a client. To have a filtering agent at the ISP would imply something beyond POP, and I'm not sure ISPs will do that unless there is sufficient demand from their clients. Cerebrus can run in "server" mode where it is shared by multiple users on a lan, but I'm not sure how one would service mutliple connections on the same port. It currently just handles one client at a time on 110. -- Graham http://www.compkarori.com/cerebrus/index.html This hound feeds on spam!

 [6/6] from: gchiu:compkarori at: 2-Dec-2002 15:11


On Sat, 30 Nov 2002 14:03:13 +0800 "Lok Yek Soon" <[yeksoon--myrealbox--com]> wrote:
>Just thought I add that for server side filtering, there >must be additional option to configure such that an email >will be sent to the receipient and/or sender to inform >them of the filtering.
Hi, Cerebrus doesn't do filtering in that sense. It annotates the subject line with what it thinks of an email, and you are left to filter it once it arrives in your mailbox. Eg: [Spam?][Bayes]Original [Spam?][Content]Subject Line [Spam?][SpamCop]follows here -- Graham Chiu