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Talk:Zarafa (view source)

Revision as of 23:25, 21 February 2009

3,261 bytes added ,  23:25, 21 February 2009
Bayesian learning for Zarafa - incorporate or reference ?!
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[[User:Snoble|Snoble]] 07:32, 22 December 2008 (UTC)
 
[[User:Snoble|Snoble]] 07:32, 22 December 2008 (UTC)
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Is this interesting enough to incorporate, or make it a separate wiki entry and reference to it ?!
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--[[User:Jester|jester]] 22:25, 21 February 2009 (UTC)
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=== SpamAssasin Bayesian learning for Zarafa ===
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The DMZS script (LGPL) works over IMAP. It reads the mail from two folders (LearnAsSpam and LearnAsHam) and feeds it to SpamAssasin's sa-learn. This script is implemented here in a way that it makes use of public folders in Zarafa.
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==== Installation ====
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  wget http://www.dmzs.com/tools/files/spam/DMZS-sa-learn.pl
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  mv DMZS-sa-learn.pl /usr/bin/
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Create a user-account in Zarafa for reading the public spam-folders. Replace the <MyPassword> with a proper strong password.
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  zarafa-admin -c 'SpamAdmin' -p '<MyPassword>' -f 'Spam Administration Account' -e root@localhost
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Now we'll edit the script and replace the Server, User and Password values. We will also have to replace two folder names throughout the script:
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  pico /usr/bin/DMZS-sa-learn.pl
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Replace the values so it looks like below, replace <MyPassword> for the password you have chosen in a previous step:
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  my $imap = Mail::IMAPClient->new( Server=> '127.0.0.1:8143',
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                                    User => 'SpamAdmin',
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                                    Password => '<MyPassword>',
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                                    Debug => $debug);
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Throughout the script (be aware of the quotes):
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  replace: 'spam'  ->  with: 'Public folders/LearnAsSpam'
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  replace: 'not-spam'  ->  with: 'Public folders/LearnAsHam'
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  remove: --showdots
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Set proper rights on the script:
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  chmod 550 /usr/bin/DMZS-sa-learn.pl
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Login to Zarafa with an account that has admin rights and make two new folders LearnAsSpam and LearnAsHam under: Public folder > Public folders.
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Set the permissions (right-click folder > Properties > Permission-tab) on both these new folders to:
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  Spam administration account
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  * Folder visible
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  * Read items
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  * Edit items: all
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  * Delete items: all
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  Everyone (and/or other users/groups you've added at least need:)
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  * Folder visible
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  * Create items
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  * Edit items: none
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  * Delete items: none
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{{Note box| Dropping mail in the public 'LearnAsHam' folder may pose a privacy problem if permissions are set less restrictive as shown above!}}
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Create a new crontab fragment:
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  pico /etc/e-smith/templates/etc/crontab/91_SpamAssasinLearn
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Add the following to the template (change the execution times to your own likings):
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  # Running the Spamassasin Bayesian SPAM learning script every hour from 8:00 to 22:00 during weekdays
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  * 8-22 * * 1-5 root /usr/bin/DMZS-sa-learn.pl
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Make the new fragment active by expanding the template:
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  expand-template /etc/crontab
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==== Configuration ====
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Bayesian filtering has to be enabled and configured in SME, you can read how to do this in: [[Email#Setup_Blacklists_.26_Bayesian_Autolearning | E-mail - Bayesian Autolearning]]
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==== Usage ====
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{{Warning box| All mail dropped in the LearnAsSpam and LearnAsHam folders will be automatically deleted !!}}
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* Move/copy spam messages that are delivered to your Inbox to the public LearnAsSpam folder.
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* COPY regular messages that end up in your Junk E-mail folder to the public LearnAsHam folder.
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After the messages have been processed they will be deleted to save your valuable space.
Jester
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