# Domain to use for DKIM signing: can be "header" (MIME From), "envelope" (SMTP From) or "auth" (SMTP username) # Map file of IP addresses/subnets to consider for signing # If false, messages from local networks are not selected for signing Path = "/etc/opendkim/userkeys/$domain/$selector.private" # Default path to key, can include '$domain' and '$selector' variables # If false, messages from authenticated users are not selected for signing # If true, username does not need to contain matching domain # If true, multiple from headers are allowed (but only first is used) # If true, envelope/header domain mismatch is ignored Install Rspamd, as:, executing these commands as 'root':Ĭode: # If false, messages with empty envelope from are not signed Opendkim: Despite this configuration no longer use opendkim, as CWP uses it as the "default" configuration for automatic domain creation with DKIM support, the proposed configuration here makes use of the DKIM keys installed by opendkim, so I tried to maintain the structure of the DKIM key files for you can use it normally, preserving the autocreation of DKIM keys at CWP, so you do not need to make any changes to the existing structure, just by including the user '_rspamd' in the opendkim group. The other steps are not using redis, or are unaffected by redis. The steps 'with redis use' are affected by redis use, and must be adapted before you use it. If for some reason you won't install, supress all steps 'for redis use' in configuration. Redis: This installation is really is not needed, but is strongly recommended, is a *astonishingly* fast database. Spamassassin: It is needed to disable spamassassin, but you can import almost all your spamassassin rules, include custom rules, and use it in Rspamd. Take a look into the documentation for available configs and parameters. Rspamd is designed to load configuration files from the /etc/rspamd/local.d/ folder, where is store customizations. Rspamd: Do not edit any default configuration file in /etc/rspamd/. General: this howto was made using CentOS7 server 圆4, so there could be differences to other distributions, and must be adapted some paths! General: all information below are important but need to be checked. I could save about 1.0 Gb of memory with just this replacement, and Rspamd now takes up only 98Mb of memory, ie 10 times less !.Įach E-mail was analyzed in one to two minutes, and is now analyzed in 2 to 3 seconds! It replaces amavisd-new, spamassassin, opendmarc, Policyd-SPF in just one software. Rspamd is designed to process hundreds of messages per second simultaneously. According to this spam score and the user’s settings rspamd recommends an action for the MTA to apply to the message- for example to pass, reject or add a header. Each message is analysed by rspamd and given a spam score. Rspamd is an advanced spam filtering system supporting a variety of filtering mechanisms including regular expressions, statistical analysis and custom services such as URL black lists. In addition, it has some other useful features like DKIM signing of outgoing mail, automatic whitelisting when you reply to someone, and a web interface where you can see spam checking results in real time. However, it also incorporates much many other anti-spam measures: RBL checks, SPF/DKIM/DMARC/ARC validation, DCC bulk mail checks, antivirus checks, and greylisting, to name a few. It uses bayesian filtering and machine learning to learn what users consider to be spam and ham, global, by domain and by user. Written in C, it is quite fast and integrates directly into postfix as a milter. Rspamd is actively developed and appears to be a much more modern project. Looking for alternatives, I found it, and it seemed much better in almost every aspects. I simply couldn't install stably spamassassin in the server. Rspamd is a fast, astonishing fast, and light open source spam filtering system which utilizes multiple techniques to prevent spam from reaching your mailbox. This howto should only be used for advanced users. Dovecot with Sieve plugin to sort mail and learn by moving messages to Junk folderĪttention: Use this how to at your own risk and make a backup before trying it. This howto describes the main steps to get and start working with Rspamd, in particular with the following setup:
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