### Installation

    $ doas pkg_add rspamd opensmtpd-filter-rspamd


### Setup

The default configuration is fine for most use cases, so we'll just leave it there. 

However you can add the following line to your `smtpd.conf`

    filter rspamd proc-exec "filter-rspamd"


Also add `rspamd` after `dkimsign` in the authcheck part, mentioned in [[Opensmtpd.Configure]]

    authcheck = "pki example.com auth <passwd> filter { check_rdns check_fcrdns dkimsign rspamd }"


After done, restart smtpd with 

    $ doas rcctl restart smtpd