Learn
Version
Maintainer
Initial contributors
Jooris Emmanuel for Firewall-services, [1]Daniel B. from Firewall Services, Brian Read , Tim Litwiller , Michael McCarn and Jesper Knudsen
Description
Scripts, based on LearnAsSpam, which allows users to interact with spamassassin rules simply by dropping mail into special folders added to their mailbox. This works only with IMAP as it is a server side process.
- Learn mail as spam
- Learn mail as ham
- Whitelist the sender so his mails won't be tagged as spam again
Installation
yum --enablerepo=smecontribs install smeserver-learn
Enable Bayes. See Bayesian Autolearning as described in the Email page for a full setup. The bare minimum configuration would be:
using SME9,you should issue this after install ; with SME10 it is not necessary, as it will be done by the installation process.
db configuration setprop spamassassin UseBayes 1 config setprop spamassassin BayesAutoLearnThresholdSpam 6.00 config setprop spamassassin BayesAutoLearnThresholdNonspam 0.10 config setprop spamassassin UseBayesAutoLearn 0 expand-template /etc/mail/spamassassin/local.cf sa-learn --sync --dbpath /var/spool/spamd/.spamassassin -u spamd chown spamd.spamd /var/spool/spamd/.spamassassin/bayes_* chown spamd.spamd /var/spool/spamd/.spamassassin/bayes.mutex chmod 640 /var/spool/spamd/.spamassassin/bayes_*
we then suggest you those settings, as default use medium Sensitivity
config setprop spamassassin status enabled config setprop spamassassin RejectLevel 12 config setprop spamassassin TagLevel 4 config setprop spamassassin Sensitivity custom signal-event email-update
Don't forget to configure db key according to your needs and expand config file to activate the contrib.
Documentation
The smeserver-learn package stores all key values needed in the configuration db. The right angle character, >, indicates that is a prop and not a key. For example, "status" is a property and "enabled, disabled" presents the allowed input values.
| LearnAsSpam | Config key for the spam learning part. |
| >status={enabled,disabled} | Enable or not spam learning. Default is disabled. |
| >tag=$string | Tag to place before subject to warn user of his message as been learn. Default is [SPAM]. |
| >dir=$string | Name of folders where searching spam. Default is LearnAsSpam. |
| >SpamLinks=$string | Allows to create IMAP fakedfolder linked to junkmail folder. Useful for IOS client thant keep using junk folder and do not allow to set another folder. Multiple Links could be entered separated by comas ",". Default is empty () for disabled. More examples follow the table. |
| >DeleteAfterLearn={enabled,disabled} | delete message after learn instead of moving it back to the user's junkmail folder. Default is disabled. |
| >DelayToMove=$integer | Get the content of the user's junkmail folder before it is deleted. Useful to get SPAM placed here by the mail client software, not yet learnt. Can only be activated if DeleteAfterLearn is enabled to avoid loop. Default 0 for disabled. |
| >LearnNew={enabled,junkmail,disabled} | Learn content of subdir of the read IMAP folder "cur"(disabled) only or also "new" (enabled- where emails are stored before any client connect to download them). With value junkmail this behaviour will be use only for inspecting junkmail IMAP folder. Default is disabled. |
| >Uniq={enabled,disabled} | If enabled, it will search the only corresponding folder named after "dir" property. If it does not exist it will create it. If disabled it will not create any IMAP folder, but will search for all folder containing the content of "dir" property (i.e. *dir* like mon_dir, dir3, mondir34) . Default is enabled. |
| LearnAsHam | Config key for the ham learning part. |
| >status={enabled,disabled} | Enable or not ham learning. Default is disabled. |
| >tag=$string | Tag to place before subject to warn user of his message as been learn. Default is [HAM]. |
| >dir=$string | Name of folders where searching ham. Default is LearnAsHam. |
| >LearnNew={enabled,disabled} | Learn content of subdir of the read IMAP folder "cur"(disabled) only or also "new" (enabled- where emails are stored before any client connect to download them) . Default is disabled. Not useful here. |
| >RemoveSPAMTag={enabled,disabled} | Remove bad [SPAM] tag from subject after learning and before putting the copy of cleaned the message back in your INBOX. Default is enabled. |
| >Uniq={enabled,disabled} | If enabled, it will search the only corresponding folder named after "dir" property. If it does not exist it will create it. If disabled it will not create any IMAP folder, but will search for all folder containing the content of "dir" property (i.e. *dir* like mon_dir, dir3, mondir34) . Default is enabled. |
| LearnInWL | Config key for the spam of messages' senders in the whitelist learning part. |
| >status={enabled,disabled} | Enable or not learning of messages' senders in the whitelist. Default is disabled. |
| >tag=$string | Tag to place before subject to warn user of his message as been learn. Default is [WL]. |
| >dir=$string | Name of folders where searching message to learn in whitelist the sender address. Default is LearnInWL. |
| >LearnNew={enabled,disabled} | Learn content of subdir of the read IMAP folder "cur"(disabled) only or also "new" (enabled- where emails are stored before any client connect to download them) . Default is disabled. Not useful. |
| >RemoveSPAMTag={enabled,disabled} | Remove bad [SPAM] tag from subject after learning and before putting the copy of cleaned the message back in your INBOX. Default is enabled. |
| >Uniq={enabled,disabled} | If enabled, it will search the only corresponding folder named after "dir" property. If it does not exist it will create it. If disabled it will not create any IMAP folder, but will search for all folder containing the content of "dir" property (i.e. *dir* like mon_dir, dir3, mondir34) . Default is enabled. |
| Learn | Config key witch affect script generally |
| >cron={none,hourly,daily,weekly,monthly} | do the search never, hourly, daily, weekly or monthly. Default is daily. |
| >Exclude=user,list,separated,by,coma | List of users without the right to use Learn. Default is empty "" for disabled. |
| >Include=user,list,separated,by,coma | List of user who has the right to use Learn. Override Exclude list. If not empty, only these users will have access to Learn. Default is empty "" for disabled. |
| >Verbose={enabled,disabled, active} | default is enabled. Active will only report users with activity, disabled will not report. |
E.g.:
config setprop LearnAsSpam status enabled config setprop LearnInWL status enabled
Individual configuration is also possible for users with the SpamLinks property
db accounts setprop MYUSER SpamLinks junks,junker
One config file is modified : /etc/cron.d/Learn who need to be expand if prop Learn>cron is modified with the following.
signal-event email-update
also the following should be sufficient:
expand-template /etc/cron.d/Learn
Setup Bayesian Autolearning
You'll also have to setup Bayesian Autolearning as described in the Email page.
Automatic creation of folders
this is not necessary anymore, if you keep the Uniq property enabled. For reference, the script previously here is kept in discussion.
Example of configuration
I like to have my learning folder as subdir of junkmail folder. My Thunderbird clients are set to use junkmail folder to put what they find to be a SPAM, but my iOS client wants to use Junk and I do not want to check myself multiple folders. My SME is set to to delete the content of junkmail after 30 days (config getprop spamassassin MessageRetentionTime), but I want the content of junkmail folder to be used to learn before deletion (15 days) leaving me time to find false positives to move them to junkmail.not_a_spam or moving them myself to junkmail.junkmail.learn. I keep Uniq enabled to have the IMAP folder created automatically even if users delete them again and again. I do not want junkmails that never were downloaded by any client be used to learn, so I keep LearnNew as disabled.
config setprop LearnAsSpam status enabled DeleteAfterLearn enabled DelayToMove 15 SpamLinks Junk dir junkmail.junkmail_learn Uniq enabled
I want to be able to remove badly placed SPAM tag when moved to junkmail.not_a_spam and have them back in my inbox without any new tag.
config setprop LearnAsHam status enabled dir junkmail.not_a_spam tag "" RemoveSPAMTag enabled Uniq enabled
Finally, I want my SME to learn every hour.
config setprop Learn cron hourly signal-event email-update
Uninstall
Simply do :
yum remove smeserver-learn
Bugs
Please raise bugs under the SME-Contribs section in bugzilla and select the smeserver-learn component or use this link .
| ID | Product | Version | Status | Summary (3 tasks) ⇒ |
|---|---|---|---|---|
| 11831 | SME Contribs | 10.0 | UNCONFIRMED | learn.pl attempts but fails to create default directories for some users. |
| 9387 | SME Contribs | 8.2 | CONFIRMED | NFR: add script to report reported ham and spam, seen junks and not yet seen junk |
| 9110 | SME Contribs | 9.2 | CONFIRMED | NFR: rbl-recheck.sh - a script to find recent emails from servers now listed in RBL |
Changelog
Only released version in smecontrib are listed here.
2021/02/23 Jean-Philipe Pialasse 1.0-16.sme
- make use of systemd [SME: 11281]
- create an update event to configure the contrib without reboot [SME: 11281]
- untag ham to avoid client to move them back to spamdir [SME: 10732]
- Remove-deprecated-defined [SME: 11281]
- Initial Import in SME 10 [SME: 11281]
- fix permission problem on bayes_tok [SME: 9446]
- fix verbose disabled unlink /dev/null [SME: 9512]
