use rspamd as milter

Dockerfile

@@ -20,16 +20,12 @@ RUN apk add --no-cache \
     postfix \
     postfix-pgsql \
     openssl \
-    spamassassin-client \
     libstdc++ \
     libmilter
 
 RUN addgroup -g 2222 access
 RUN addgroup postfix access
 
-RUN mkdir /var/run/spamass-milter
-RUN chown postfix:postfix /var/run/spamass-milter
-
 RUN chown root /var/spool/postfix/
 RUN chown root /var/spool/postfix/pid
 

README.md

@@ -1,4 +1,4 @@
-[Postfix](http://www.postfix.org/) with dovecot authentication and [spamassassin](http://spamassassin.apache.org/) + [OpenDKIM](http://www.opendkim.org/) in postgres.
+[Postfix](http://www.postfix.org/) with dovecot authentication and [rspamd](https://rspamd.com/) using postgres.
 
 # Volumes
 - `/etc/ssl/mail:ro`: certificates have to be here.
@@ -91,6 +91,11 @@ The minimum TLS cipher grade that the Postfix SMTP server will use with opportun
 
 Comma seperated list of ciphers or cipher types to exclude from the SMTP server cipher list at all TLS security levels.
 
+## RSPAMD_ADDRESS
+- default: inet:127.0.0.1:11332
+
+Where to connect to rspamd.
+
 # Ports
 - 25
 - 587

rootfs/etc/confd/templates/main.cf.tmpl

@@ -59,10 +59,10 @@ smtpd_sasl_tls_security_options = noanonymous
 smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination
 smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination, reject_unverified_recipient
 
-#smtpd_milters =
+smtpd_milters={{ getenv "RSPAMD_ADDRESS" "inet:127.0.0.1:11332" }}
-#    unix:/var/run/spamass-milter/spamass.sock
+non_smtpd_milters=$smtpd_milters
-#    inet:{{getenv "DKIM_HOST"}}:{{getenv "DKIM_PORT"}}
+milter_mail_macros="i {mail_addr} {client_addr} {client_name} {auth_authen}"
-#non_smtpd_milters = $smtpd_milters
+
 milter_default_action = accept
 milter_macro_daemon_name = ORIGINATING
 milter_connect_macros = "i j {daemon_name} v {if_name} _"

rootfs/etc/services.d/spamass-milter/run

@@ -1,3 +0,0 @@
-#!/usr/bin/with-contenv sh
-
-#exec s6-setuidgid postfix spamass-milter -u postmaster -p /var/run/spamass-milter/spamass.sock -- -d $SPAMASSASSIN_HOST