SPAMASSASSIN RULE INSTALL
SPAMASSASSIN RULE UPDATE
SPAMASSASSIN RULE SOFTWARE

In a multi-server Zimbra infrastructure this file and in general all the settings must be copied on all the MTA server where you need filtering. In general you can use this file to increase and decrease scores or define you own. You can whitelist you server using the internal_networks parameter.

You can turn Bayes filtering off by setting “ use_bayes” to zero. Bayes works great for some but not for others. SpamAssassin also comes with a Bayes filtering engine. This way the spammer can receive replies to an email account that was not the source of the spam. This helps balance SpamAssassin between falsely identifying a message as SPAM when it is not. Likewise, when SpamAssassin processes a rule indicating a non-SPAM message, the total number of points decrements with a negative score value. The mail forgery tests return a higher score than the default SpamAssassin score, because spammers send junk mail from a “real” mail server, but fake the response so that it points to a gmail, hotmail, etc. Rules have a higher positive score value when they are more apparently SPAM. Creating a custom rule should be done carefully. To get around this, we can set its score to a very low value. MailCleaner uses SpamAssassin to establish a spam score for each mail. The next test, for Reverse DNS, has a high score by default, with among other things a high false positive rate. On the other hand, the PBL test is used by other tests, so we will set it to a small value. They should then be adjusted down to zero, otherwise, emails sent from Outlook using the Connector for Outlook will often be flagged as spam. The first lines that contain SpamAssassin’s “_MX” and “_PBL” tests have default scores that are very high, and they go off when a user with Zimbra Connector for Outlook sends email. Let’s go over, now, many SpamAssasin default scores could be too high or too low for your environment or maybe you need to specify custom scores, to achieve this create a new file nano ~/data/spamassassin/localrules/zzsauser.cfĪnd let’s go edit it, adding the lines that we report below: score DOS_OUTLOOK_TO_MX 0 Here you can use the wildcard TLD, wildcard domain or specific email address you wish to blacklist. The area we will be focusing on for this guide is the E-mail Blacklist section. Just add more channels to the variable update_channels in the script.One last customization to improve SpamAssassin If SpamAssassin is not currently enabled just select the Enable SpamAssassin button and the SpamAssassin panel will load. The script takes care of the different requirements for Amavisd and Rspamd and performs the appropriate actions if one or both content-filters are installed.

SPAMASSASSIN RULE INSTALL

To use the rules and keep them up-to-date, just install a simple shell-script in /etc/cron.hourly: cd /etc/cron.hourly & wget -O sa-update & chown root.root sa-update & chmod 755 sa-update The body does not contain the keyword SEO.

SPAMASSASSIN RULE UPDATE

Our update-script copies the rules to the directory and updates the the rulest.įor more informations about the SpamAssassin module for Rspamd: Spamassassin module Update the rules using cron I will now make a SpamAssassin rule that satisfies the following conditions: Spam Score is less than 4. # Those regexp atoms will not be passed through hyperscan: # Limit search size to 100 kilobytes for all regular expressions The SpamAssassin wiki has a list of additional rulesets available here: SpamAssassin Wiki - Custom Rulesets NOTE : cPanel installs the KAM.cf ruleset by default so there is no need to manually install that custom ruleset.

You can use SpamAssassin rules with Rspamd by creating the file /etc/rspamd/local.d/nf with the following content: ruleset = '/var/lib/spamassassin/rspamd/sa_ruleset' īase_ruleset = '/var/lib/spamassassin/rspamd/*.cf' SpamAssassin uses DNS checks to detect new rules so that the script can be called every hour or at least dayly without generating a significant load.

Please do not forget to restart SpamAssassin after installing or updating rules. For this, only our channel has to be added to the SpamAssassin-Config or our script has to be installed. Of course, you can also use the rules for the ISPConfig spam filter settings. SpamAssassin is killing my server, and I use downloaded rulesets: FasterPerformance, OutOfMemoryProblems.

SPAMASSASSIN RULE SOFTWARE

We regularly publish new rules for the spamfilter SpamAssassin of the Apache Software Foundation Apache Software Foundation.

Spamassassin rule