diff --git a/group_vars/mail b/group_vars/mail
index c3f0e9f..3ac22c5 100644
--- a/group_vars/mail
+++ b/group_vars/mail
@@ -1,3 +1,67 @@
 dovecot_users:
   ccchb.de:
-    crest: '{BLF-CRYPT}$2y$05$KcRfdL6C5DjSFZST5x5mo.JiEBz2.nGOl9UuKc39vHBdEBbm6udGu'
+    crest: '{BLF-CRYPT}$2y$05$Yz0c1tu.a3.SFxgCAkJb9O3aIK8vxMCTrxLzjAs8HFf2ySW4zs2J.'
+    deelkar: '{BLF-CRYPT}$2y$05$tzLicykk.2DfjPZkQTZAJOuUgCtsnL5f1BgkJSJ7YbSOZ5DWRPP/y'
+    jpa: '{BLF-CRYPT}$2y$05$/Q7zyzR3XzGajZQ5BCYObOlKPVYqonF7fjup0ZuJzSFPO3TZoPrXm'
+    inj4n: '{BLF-CRYPT}$2y$05$h34aPYEN5/p2AnzPtg6wweh14RdPl9ZpEuqyahkl6s3oYWVwzggvi'
+
+mlmmj_lists:
+  - name: 'vorstand'
+    domain: 'lists.ccchb.de'
+    description: CCC Bremen Vorstand Mailingliste
+    owner: crest@ccchb.de
+    addresses:
+      - vorstand@lists.ccchb.de
+      - vorstand@ccchb.de
+    subscription_moderated: yes
+    prefix: '[CCCHB Vorstand]'
+
+  - name: ccc
+    domain: lists.ccchb.de
+    description: CCC Bremen Mailinglist
+    owner: crest@ccchb.de
+    addresses:
+      - ccc@lists.ccchb.de
+      - ccc@ccchb.de
+    subscription_moderated: no
+    prefix: '[CCCHB]'
+
+  - name: announce
+    domain: lists.ccchb.de
+    description: CCC Bremen Announce Mailinglist
+    owner: crest@ccchb.de
+    addresses:
+      - announce@lists.ccchb.de
+      - announce@ccchb.de
+    subscription_moderated: no
+    prefix: '[CCCHB Announce]'
+
+  - name: haecksen
+    domain: lists.ccchb.de
+    description: CCC Bremen Haecksen Mailinglist
+    owner: crest@ccchb.de
+    addresses:
+      - haecksen@lists.ccchb.de
+      - haecksen@ccchb.de
+    subscription_moderated: no
+    prefix: '[CCCHB Haecksen]'
+
+  - name: mitglieder
+    domain: lists.ccchb.de
+    description: CCC Bremen Mitglieder Mailinglist
+    owner: crest@ccchb.de
+    addresses:
+      - mitglieder@lists.ccchb.de
+      - mitglieder@ccchb.de
+    subscription_moderated: yes
+    prefix: '[CCCHB Mitglieder]'
+
+  - name: presse
+    domain: lists.ccchb.de
+    description: CCC Bremen Presse Mailinglist
+    owner: crest@ccchb.de
+    addresses:
+      - presse@lists.ccchb.de
+      - presse@ccchb.de
+    subscription_moderated: yes
+    prefix: '[CCCHB Presse]'
diff --git a/mail.yml b/mail.yml
index 752d026..6343982 100644
--- a/mail.yml
+++ b/mail.yml
@@ -19,3 +19,4 @@
     - dovecot
     - rspamd
     - postfix
+    - mlmmj
diff --git a/roles/mlmmj/handlers/main.yml b/roles/mlmmj/handlers/main.yml
new file mode 100644
index 0000000..7a2797a
--- /dev/null
+++ b/roles/mlmmj/handlers/main.yml
@@ -0,0 +1,20 @@
+---
+- name: Restart Postfix
+  command: s6-svc -wU -T 5000 -ru /run/service/postfix
+
+- name: Reload Postfix
+  command: s6-svc -h /run/service/postfix
+
+- name: Rebuild mlmmj virtual aliases
+  command: postmap hash:/usr/local/etc/postfix/virtual_mlmmj
+
+- name: Rebuild mlmmj transport map
+  command: postmap hash:/usr/local/etc/postfix/transport_mlmmj
+
+- name: Reload s6-rc
+  service:
+    name: s6-rc
+    state: reloaded
+
+- name: Restart mlmmj-maintd
+  command: s6-svc -wU -T 5000 -ru /run/service/mlmmj-maintd
diff --git a/roles/mlmmj/tasks/main.yml b/roles/mlmmj/tasks/main.yml
new file mode 100644
index 0000000..1718cbd
--- /dev/null
+++ b/roles/mlmmj/tasks/main.yml
@@ -0,0 +1,280 @@
+---
+- name: Install mlmmj
+  package:
+    name:
+      - mlmmj
+    state: present
+
+- name: Create mlmmj group
+  group:
+    name: mlmmj
+    gid: 20003
+
+- name: Create mlmmj user
+  user:
+    name: mlmmj
+    uid: 20003
+    group: mlmmj
+    create_home: no
+    home: /var/vmail/mlmmj
+    shell: /sbin/nologin
+
+
+- name: Create lists directory
+  file:
+    path: /var/vmail/mlmmj
+    state: directory
+    owner: mlmmj
+    group: mlmmj
+
+- name: Create archive directory
+  file:
+    path: /var/vmail/mlmmj-archive
+    state: directory
+    owner: mlmmj
+    group: mlmmj
+
+- name: Create mlmmj postfix service
+  lineinfile:
+    path: /usr/local/etc/postfix/master.cf
+    regexp: '^{{ transport_service.name }} +{{ transport_service.type }}'
+    value: '{{ transport_service.value }}'
+  notify:
+    - Restart Postfix
+
+- name: Configure Postfix
+  postconf:
+    name: '{{ item.name }}'
+    value: '{{ item.value | default(omit) }}'
+    state: '{{ item.state | default(omit) }}'
+  with_items: '{{ postfix_config }}'
+  notify:
+    - Reload Postfix
+
+- name: Generate mlmmj virtual aliases
+  template:
+    dest: /usr/local/etc/postfix/virtual_mlmmj
+    src: virtual_mlmmj.j2
+    mode: 0444
+    owner: root
+    group: wheel
+  notify:
+    - Rebuild mlmmj virtual aliases
+
+- name: Generate mlmmj transport map
+  template:
+    dest: /usr/local/etc/postfix/transport_mlmmj
+    src: transport_mlmmj.j2
+    mode: 0444
+    owner: root
+    group: wheel
+  notify:
+    - Rebuild mlmmj transport map
+
+- name: Create mlmmj-maintd service directories
+  file:
+    path: '/etc/s6-rc/service/{{ item }}'
+    state: directory
+    owner: root
+    group: wheel
+    mode: 0755
+  with_items: '{{ mlmmj_service_dirs }}'
+  notify:
+    - Reload s6-rc
+    - Restart mlmmj-maintd
+
+- name: Generate mlmmj-maintd service scripts
+  template:
+    dest: '/etc/s6-rc/service/{{ item }}'
+    src: '{{ item }}.j2'
+    mode: 0555
+    owner: root
+    group: wheel
+  with_items: '{{ mlmmj_service_scripts }}'
+  notify:
+    - Reload s6-rc
+    - Restart mlmmj-maintd
+
+- name: Generate mlmmj-maintd service configuration
+  copy:
+    dest: '/etc/s6-rc/service/{{ item.name }}'
+    content: '{{ item.content }}'
+    mode: 0444
+    owner: root
+    group: wheel
+  loop_control:
+    label: '{{ item.name }} = {{ item.content }}'
+  with_items: '{{ mlmmj_service_config }}'
+  notify:
+    - Reload s6-rc
+    - Restart mlmmj-maintd
+
+- name: Flush handlers
+  meta: flush_handlers
+
+- name: Start mlmmj-maintd
+  command: fdmove -c 2 1 s6-rc -u -v 2 change mlmmj-maintd
+  register: change
+  changed_when: change.stdout | length > 0
+
+- name: Enable mlmmj-maintd
+  lineinfile:
+    path: /etc/s6-rc/service/enabled/contents
+    regexp: "^mlmmj-maintd$"
+    line: "mlmmj-maintd"
+  notify:
+    - Reload s6-rc
+
+- name: Flush handlers (again)
+  meta: flush_handlers
+
+- name: Create mailing lists
+  command: >
+    mlmmj-make-ml -s /var/vmail/mlmmj -L {{ item.name }}
+  args:
+    creates: '/var/vmail/mlmmj/{{ item.name }}/control/listaddress'
+    stdin: |
+      {{ item.domain }}
+      {{ item.owner }}
+      en
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Change ownership and permissions
+  file:
+    path: '/var/vmail/mlmmj/{{ item.name }}'
+    recurse: yes
+    owner: mlmmj
+    group: mlmmj
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Disable subscriber listing
+  copy:
+    dest: '/var/vmail/mlmmj/{{ item.name }}/control/nolistsubsemail'
+    content: ''
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    force: no
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Strip these headers from incoming messages
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.0.name }}/control/delheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^{{ item.1 }}:$'
+    line: '{{ item.1 }}:'
+  loop_control:
+    label: '{{ item.0.name }}@{{ item.0.domain }} : {{ item.1 }}'
+  with_nested:
+    - '{{ mlmmj_lists }}'
+    - '{{ mlmmj_delete_headers }}'
+
+- name: Add List-Id header
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.name }}/control/customheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^List-Id:'
+    line: 'List-Id: {{ item.description }} <{{ item.name }}.{{ item.domain }}>'
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Add List-Subscribe header
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.name }}/control/customheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^List-Subscribe:'
+    line: 'List-Subscribe: <mailto:{{ item.name }}+subscribe@{{ item.domain }}>'
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Add List-Unsubscribe header
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.name }}/control/customheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^List-Unsubscribe:'
+    line: 'List-Unsubscribe: <mailto:{{ item.name }}+unsubscribe@{{ item.domain }}>'
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Add List-Post header
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.name }}/control/customheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^List-Post:'
+    line: 'List-Post: <mailto:{{ item.name }}@{{ item.domain }}>'
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Add List-Help header
+  lineinfile:
+    path: '/var/vmail/mlmmj/{{ item.name }}/control/customheaders'
+    create: yes
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+    regexp: '^List-Help:'
+    line: 'List-Help: <mailto:{{ item.name }}@{{ item.domain }}?subject=help>'
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Add prefix to subjects
+  copy:
+    dest: '/var/vmail/mlmmj/{{ item.name }}/control/prefix'
+    content: |
+      {{ item.prefix }}
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Configure list addresses
+  template:
+    dest: '/var/vmail/mlmmj/{{ item.name }}/control/listaddress'
+    src: listaddress.j2
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
+
+- name: Moderate subscription
+  copy:
+    dest: '/var/vmail/mlmmj/{{ item.name }}/control/submod'
+    content: ''
+    force: no
+    owner: mlmmj
+    group: mlmmj
+    mode: 0444
+  when: item.subscription_moderated | default(false)
+  loop_control:
+    label: '{{ item.name }}@{{ item.domain }}'
+  with_items: '{{ mlmmj_lists }}'
diff --git a/roles/mlmmj/templates/listaddress.j2 b/roles/mlmmj/templates/listaddress.j2
new file mode 100644
index 0000000..d0e4e6d
--- /dev/null
+++ b/roles/mlmmj/templates/listaddress.j2
@@ -0,0 +1,3 @@
+{% for address in item.addresses %}
+{{ address }}
+{% endfor %}
diff --git a/roles/mlmmj/templates/mlmmj-maintd-log/finish.j2 b/roles/mlmmj/templates/mlmmj-maintd-log/finish.j2
new file mode 100644
index 0000000..00e3945
--- /dev/null
+++ b/roles/mlmmj/templates/mlmmj-maintd-log/finish.j2
@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+        echo "${NAME}: Stopped."
+}
+        echo "${NAME}: Failed with exit status (${1}, ${2})."
diff --git a/roles/mlmmj/templates/mlmmj-maintd-log/run.j2 b/roles/mlmmj/templates/mlmmj-maintd-log/run.j2
new file mode 100644
index 0000000..1804fdb
--- /dev/null
+++ b/roles/mlmmj/templates/mlmmj-maintd-log/run.j2
@@ -0,0 +1,23 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME  NAME
+        importas -i -u USER  USER
+        importas -i -u GROUP GROUP
+        importas -i -u MODE  MODE
+        importas -i -u DIR   DIR
+}
+
+foreground { fdmove -c 1 2 echo "${NAME} log: Starting." }
+
+ifelse -n { install -d -o "${USER}" -g "${GROUP}" -m "${MODE}" "$DIR" } {
+        foreground { fdmove -c 1 2 echo "${NAME} log: Failed to create logging directory." }
+        false
+}
+
+fdmove -c 2 1
+
+s6-envuidgid $USER
+s6-log -d 3 T $DIR
diff --git a/roles/mlmmj/templates/mlmmj-maintd/finish.j2 b/roles/mlmmj/templates/mlmmj-maintd/finish.j2
new file mode 100644
index 0000000..82c4216
--- /dev/null
+++ b/roles/mlmmj/templates/mlmmj-maintd/finish.j2
@@ -0,0 +1,14 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+	echo "${NAME}: Stopped."
+}
+
+echo "${NAME}: Failed with exit status (${1}, ${2})."
diff --git a/roles/mlmmj/templates/mlmmj-maintd/run.j2 b/roles/mlmmj/templates/mlmmj-maintd/run.j2
new file mode 100644
index 0000000..5e66b81
--- /dev/null
+++ b/roles/mlmmj/templates/mlmmj-maintd/run.j2
@@ -0,0 +1,12 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+foreground { fdmove -c 1 2 echo "${NAME}: Starting." }
+
+fdmove -c 2 1
+snooze -v -H "*" /usr/local/bin/mlmmj-maintd -F -d /var/vmail/mlmmj
diff --git a/roles/mlmmj/templates/transport_mlmmj.j2 b/roles/mlmmj/templates/transport_mlmmj.j2
new file mode 100644
index 0000000..03dc8f0
--- /dev/null
+++ b/roles/mlmmj/templates/transport_mlmmj.j2
@@ -0,0 +1,5 @@
+# {{ ansible_managed }}
+
+{% for list in mlmmj_lists %}
+{{ list.domain }}--{{ list.name }}@localhost.mlmmj mlmmj:{{ list.name }}
+{% endfor %}
diff --git a/roles/mlmmj/templates/virtual_mlmmj.j2 b/roles/mlmmj/templates/virtual_mlmmj.j2
new file mode 100644
index 0000000..d0539cb
--- /dev/null
+++ b/roles/mlmmj/templates/virtual_mlmmj.j2
@@ -0,0 +1,7 @@
+# {{ ansible_managed }}
+
+{% for list in mlmmj_lists %}
+{% for address in list.addresses %}
+{{ address }} {{ list.domain }}--{{ list.name }}@localhost.mlmmj
+{% endfor %}
+{% endfor %}
diff --git a/roles/mlmmj/vars/main.yml b/roles/mlmmj/vars/main.yml
new file mode 100644
index 0000000..3500bfc
--- /dev/null
+++ b/roles/mlmmj/vars/main.yml
@@ -0,0 +1,72 @@
+---
+transport_service:
+  name: mlmmj
+  type: unix
+  value: 'mlmmj     unix  -       n       n       -       -       pipe flags=ORhu user=mlmmj argv=/usr/local/bin/mlmmj-receive -F -L /var/vmail/mlmmj/$nexthop'
+
+postfix_config:
+  - name: mlmmj_destination_recipient_limit
+    value: 1
+    state: present
+
+  - name: transport_maps
+    value: hash:/usr/local/etc/postfix/transport_mlmmj
+    state: present
+
+mlmmj_service_dirs:
+  - mlmmj-maintd
+  - mlmmj-maintd/env
+  - mlmmj-maintd/data
+  - mlmmj-maintd-log
+  - mlmmj-maintd-log/env
+
+mlmmj_service_scripts:
+  - mlmmj-maintd/run
+  - mlmmj-maintd/finish
+  - mlmmj-maintd-log/run
+  - mlmmj-maintd-log/finish
+
+mlmmj_service_config:
+  - name: mlmmj-maintd/type
+    content: longrun
+  - name: mlmmj-maintd/dependencies
+    content: postfix
+  - name: mlmmj-maintd/env/NAME
+    content: mlmmj-maintd
+  - name: mlmmj-maintd/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+  - name: mlmmj-maintd/producer-for
+    content: mlmmj-maintd-log
+
+  - name: mlmmj-maintd-log/type
+    content: longrun
+  - name: mlmmj-maintd-log/notification-fd
+    content: '3'
+  - name: mlmmj-maintd-log/consumer-for
+    content: mlmmj-maintd
+  - name: mlmmj-maintd-log/env/NAME
+    content: mlmmj-maintd
+  - name: mlmmj-maintd-log/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+  - name: mlmmj-maintd-log/env/MODE
+    content: '750'
+  - name: mlmmj-maintd-log/env/USER
+    content: s6-log
+  - name: mlmmj-maintd-log/env/GROUP
+    content: s6-log
+  - name: mlmmj-maintd-log/env/DIR
+    content: /var/log/mlmmj-maintd
+
+mlmmj_delete_headers:
+  - List-Archive
+  - List-Help
+  - List-ID
+  - List-Owner
+  - List-Post
+  - List-Subscribe
+  - List-Unsubscribe
+  - List-Unsubscribe-Post
+  - Return-Receipt-To
+  - Disposition-Notification-To
+  - X-Confirm-Reading-To
+  - X-Pmrqc