Post #102,589
5/19/03 1:55:39 PM
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Okay, I have time for more detail now
> What about individual training?
> How would that work?
I assume you mean "training" in the sense of "training the Bayesian filter"? There are several aspects to SA's bayes process:
1) The usual training from individual emails. SA has mechanisms to traverse a folder full of ham or spam (mbox, maildir, etc), and incorporate it into the statistical db. You can also do that for a single mail item from the command line. So, for example, I've got an Exim director/transport pair which receives mail at spam@mydomain.com (from internal senders only) and adds it to the SA db via the latter mechanism. Ditto for ham. This is for false positives/negatives.
2) White/blacklists. This is my next project: allow people to forward ham/spam to another pair of local addresses, and have the original senders black/whitelisted. This is a bit more work, and I may just screw the mail parsing of embedded headers and go with a web interface.
> In our company, we have highly individualistic requirements for filtering.
> Since we do junk mail (printed), the body of a very important email might
> contain ad copy from a client, which means it feels like spam. In the
> case of the Outlook intefaced SpamBayes, this allows the client reps to
> train for their particular client, while the rest of the company won't
> be annoyed.
3) You can override the system-wide scoring, both Bayes and hard-coded, with user config files. In the case of a mail hub, you could group certain recipients together to use a common config file.
Again, SA on my setup runs as an add-on "service" to Exim, which has its own mechanisms for rejecting/accepting mail. In other words, SA is not embedded/compiled into Exim. Exim invokes SA as scripted. You could use any number of means within Exim to accept mail from known clients without passing it through SA at all. Exim uses a transport to invoke SA processing; certain directors send mail on that transport; other directors do not.
When I get around to writing an auto-whitelist tool, I'd be happy to share it with you. Configuring Exim to use SA can be examined at e.g.: [link|http://dman.ddts.net/~dman/config_docs/exim3_spamassassin.html|http://dman.ddts.net...spamassassin.html]
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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Post #102,736
5/20/03 9:14:23 AM
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Thanks
I'm doing a bit more on the possible front-ending issue.
Might be doable in a little while.
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Post #102,829
5/20/03 3:59:24 PM
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Full writeup on Exim and SpamAssassin as Exchange front end
[link|http://www.aminus.org/rbre/work/eximhub.htm|http://www.aminus.or.../work/eximhub.htm]
Comments welcome.
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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Post #102,843
5/20/03 5:46:22 PM
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Thanks to you...
I like this. This is GOOD stuff...
Love it.
| [link|mailto:greg@gregfolkert.net|greg] - IT Grand-Master for Anti-President | | [link|http://www.iwethey.org/ed_curry/|REMEMBER ED CURRY!] |
THEY ARE WATCHING YOU. The time has come for you to take the last step. You must love THEM. It is not enough to obey THEM. You must love THEM. PEACE BEGETS WAR, SLAVERY IS FREEDOM, STRENGTH IN IGNORANCE.
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Post #102,846
5/20/03 6:08:56 PM
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Thanks! (plus, I added the .css file I forgot to upload)
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
|
Post #102,858
5/20/03 7:21:40 PM
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Coming soon to knight?
===
Implicitly condoning stupidity since 2001.
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Post #102,876
5/20/03 10:41:43 PM
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Ummm...
Why, yes indeedee. Soon too.
| [link|mailto:greg@gregfolkert.net|greg] - IT Grand-Master for Anti-President | | [link|http://www.iwethey.org/ed_curry/|REMEMBER ED CURRY!] |
THEY ARE WATCHING YOU. The time has come for you to take the last step. You must love THEM. It is not enough to obey THEM. You must love THEM. PEACE BEGETS WAR, SLAVERY IS FREEDOM, STRENGTH IN IGNORANCE.
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Post #102,855
5/20/03 7:16:11 PM
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THANKYOU!!!
Great stuff
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Post #102,856
5/20/03 7:17:34 PM
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Great, but...
... why isn't it in the twiki...? ;-)
Regards,
-scott anderson
"Welcome to Rivendell, Mr. Anderson..."
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Post #102,857
5/20/03 7:21:24 PM
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Ouch.
Because I wanted the page to look good and be readable? >:)
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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Post #102,859
5/20/03 7:23:41 PM
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You can use the same HTML there...
Regards,
-scott anderson
"Welcome to Rivendell, Mr. Anderson..."
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Post #102,952
5/21/03 10:58:06 AM
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--Document got minor edits this morning
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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Post #102,981
5/21/03 3:44:24 PM
5/21/03 3:48:29 PM
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Comments unwelcome
..in the (otherwise nice) text. In the context of a screed, inline comments like "uh...system" just make you look like another kook. Yes Exchange is a piece of shit. Everyone knows that.
(GRATUITOUS USE OF cat WARNING - section "Turning it On")
-drl
Edited by deSitter
May 21, 2003, 03:48:29 PM EDT
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Post #102,999
5/21/03 5:41:10 PM
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I've adapted my message to my audience...
most of whom are, like me, tired of Exchange and are looking for better alternatives. Using Exim and SA as a front-end to Exchange is a first step for me and them to eventually replace Exchange entirely. As far as I'm concerned, people who take offense at such comments can go jump in a lake--they're not intended or welcome as the recipients of my labor. All of which is to say, I think you've misinterpreted my intended audience.
On the other subject, do you have a preferred alternative to the "cat"? Involving < perhaps or should I try to divine your solution with bones and chicken entrails?
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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Post #103,027
5/21/03 9:20:16 PM
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Re: I've adapted my message to my audience...
"grep --with-filename expr filename_pattern" usually works. stdin and all that.
As for intended audience, it should be people who are cemented
to the POS Exchange - why try to convince the convinced?
As for "gratuitous use of cat", that's an old UNIX dig. You're guilty.
Fess up.
-drl
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Post #103,041
5/21/03 10:22:12 PM
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Thanks for the explicitness
> "grep --with-filename expr filename_pattern"
> usually works. stdin and all that.
Thanks.
> As for intended audience, it should be people who are cemented
> to the POS Exchange - why try to convince the convinced?
I think what I was trying to say before was that I didn't put this document out there to convince anyone of anything. It's there to help people who are already convinced, and are looking for How To Do It, since there is precious little of that in the MTA crowd specifically, and the sysadmin crowd in general. If people aren't already convinced that Exchange is a POS, then my little HOWTO document is not the place to try to convince them. Attempting such makes me look like a kook. ;)
> As for "gratuitous use of cat", that's an old UNIX dig.
> You're guilty. Fess up.
Well, if I were an old UNIX'er, I'd do so. :) I learned on Apples and am employed on Windows. UNIX, I'm still leraning about. So again, thanks for the tip.
Many fears are born of stupidity and ignorance -
Which you should be feeding with rumour and generalisation.
BOfH, 2002 "Episode" 10
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