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Poco Forums • View topic - Configure Junk Mail Features

Configure Junk Mail Features

Discussion on Bayesian and standard junk mail filters

Moderators: Eric, Tomas, robin, Michael

Configure Junk Mail Features

Postby Daethian » Thu May 26, 2005 12:21 am

I'm not familiar with the Bayesian settings. If I set it to strict will that take care of most? I have worked hard to keep my home email off the net and reserve it for family and friends. But over the past month there have been one or two junk mails turning up and I want to stop it before it gets out of hand.
Daethian
New Arrival
 
Posts: 2
Joined: Mon Feb 21, 2005 5:59 am
Location: Illinois

Re: Configure Junk Mail Features

Postby Eric » Thu May 26, 2005 9:59 pm

Daethian wrote:I'm not familiar with the Bayesian settings. If I set it to strict will that take care of most?
If you set it to strict Bayesian, the other built-in junkmail filters will be disabled.
Bayesian = learning filter.
You tell Poco what's HAM or SPAM and the Bayesian filter learns from it.

When you change the settings, it's best to restart from scratch.
Close Poco and delete or move the DBGood and DBSpam file inside the Mail directory.
Restart and those files will be recreated. :)

Whether it will take care of most depends on the learning process and the settings which work for you.

Not a specialist in this field, so maybe someone else can add additional info.

I hope this helps. :wink:
Eric
 

Postby SFCurley » Fri May 27, 2005 3:03 am

If you only want Bayesian, with no other built-in filters at all, then strict bayesian would be the way to go. My take is that PM's bayesian filters learn a little slowly, but DO eventually learn and pretty well. (My PM Bayesian filters are running at 99% but had to run A LOT of messages throught to get it to that point.)

That said, I also use an address book filter, a DNS blacklist filter, and some other custom filters to improve things above that. These filters improve the overall accuracy of PM's filters above that 99% bayesian number. Here's a link to a post about the basic list of filters:

http://www.pocosystems.com/forum/viewtopic.php?t=880

I would respectfully disagree with Eric about deleting the DBSpam and DBGood files if you change settings. If it was junk yesterday, you would probably still want it to be considered junk today (same with good), so I'd hate to just throw away a corpus, especially if it's been accumulated over a long period of time. Of course, if it's only got a few days worth of learning, probably not a big deal either.
SFCurley
 

Postby Eric » Fri May 27, 2005 4:40 am

SFCurley wrote:I would respectfully disagree with Eric about deleting the DBSpam and DBGood files if you change settings.
What happens with the score attributed to those messages?
Isn't it different when changing the settings to strict Bayesian?
I'm not a specialist in these matters, but that's how I see it. :wink:
Eric
 

Postby SFCurley » Fri May 27, 2005 4:44 pm

Messages that you say are junk are treated the same regardless of whether strict bayesian is on or off. If you say, "junk", then the dbspam word/token counters are updated by +1 for each word or token in the email. Same for "good", except the dbgood counters are updated.
SFCurley
 

Postby Eric » Fri May 27, 2005 11:23 pm

Thanks Sean for the information and my apologies to both for misunderstanding that Bayesian stuff. :wink:
Eric
 

Postby SFCurley » Sat May 28, 2005 4:11 pm

No problem at all, and happy to help, if only in some small way.
SFCurley
 


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