Add sieve mailfiltering

README.md

@@ -52,6 +52,7 @@ Setup
     cp mail-base/aliases.example mail-base/aliases
     cp mail-base/domains.example mail-base/domains
     cp mail-base/passwords.example mail-base/passwords
+    cp dovecot/default.sieve.example dovecot/default.sieve
 
 2) Add all domains you want to receive mail for to the file `mail-base/domains`, like this:
 

dovecot/90-sieve.conf

@@ -0,0 +1,6 @@
+plugin {
+   sieve = ~/.dovecot.sieve
+   sieve_global_path = /var/lib/dovecot/sieve/default.sieve
+   sieve_dir = ~/sieve
+   sieve_global_dir = /var/lib/dovecot/sieve/
+}

dovecot/Dockerfile

@@ -10,6 +10,10 @@ RUN apt-get update                                  \
     postgrey      \
     # Install dovecot as IMAP server
     dovecot-imapd \
+    # Install sieve for mail filtering
+    dovecot-sieve      \
+    # Install sieve for mail filtering
+    dovecot-managesieved      \
     && rm -rf /var/lib/apt/lists/*
 
 # postfix configuration
@@ -18,6 +22,11 @@ ADD ./postfix.main.cf /etc/postfix/main.cf
 ADD ./postfix.master.cf.append /etc/postfix/master-additional.cf
 RUN cat /etc/postfix/master-additional.cf >> /etc/postfix/master.cf
 
+# sieve configuration
+ADD ./default.sieve /var/lib/dovecot/sieve/default.sieve
+RUN sievec /var/lib/dovecot/sieve/default.sieve
+ADD ./90-sieve.conf /etc/dovecot/conf.d/90-sieve.conf
+
 # configure mail delivery to dovecot
 #ADD ./aliases /etc/postfix/virtual
 #ADD ./domains /etc/postfix/virtual-mailbox-domains
@@ -66,4 +75,3 @@ EXPOSE 587
 
 # start necessary services for operation (dovecot -F starts dovecot in the foreground to prevent container exit)
 ENTRYPOINT chown -R vmail:vmail /srv/vmail; service rsyslog start; service postgrey start; service postfix start; dovecot -F
-

dovecot/default.sieve.example

@@ -0,0 +1,12 @@
+require ["vacation"];
+if address :is ["From", "To"] "[email protected]" {
+vacation
+  # Reply at most once a day to a same sender
+  :days 1
+  :subject "Out of Office"
+  # List of additional recipient addresses which are included in the auto replying.
+  # If a mail's recipient is not the envelope recipient and it's not on this list,
+  # no vacation reply is sent for it.
+  :addresses ["[email protected]"]
+  "Im out of office";
+}

dovecot/dovecot.lda

@@ -1,5 +1,5 @@
 protocol lda {
   hostname = mail.docker.container
   postmaster_address = [email protected]
-  mail_plugin_dir = /usr/lib/dovecot/modules/lda
+  mail_plugins = $mail_plugins sieve
 }