mail: Setup postfix up for mailman3

roles/mail/tasks/main.yml

@@ -18,7 +18,8 @@
     - dovecot-sieve
     - fcgiwrap
     - mailman
-    - mailman3
+    - mailman3-full
+    - postgresql
     - postfix
     - postsrsd
     - redis-server

roles/mail/templates/postfix/main.cf.j2

@@ -11,6 +11,7 @@ inet_interfaces = all
 inet_protocols = all
 message_size_limit = 50000000
 recipient_delimiter = +
+owner_request_special = no
 unknown_local_recipient_reject_code = 550
 strict_rfc821_envelopes = yes
 disable_vrfy_command = yes
@@ -115,9 +116,15 @@ unverified_recipient_reject_code = 550
 unverified_recipient_reject_reason = Recipient unknown
 
 # mailman
-relay_domains = {{ mailman_domain }}
-relay_recipient_maps = hash:/var/lib/mailman/data/virtual-mailman
-transport_maps = hash:/etc/postfix/transport
+relay_domains =
+    hash:/var/lib/mailman3/data/postfix_domains
+    {{ mailman_domain }}
+local_recipient_maps =
+    hash:/var/lib/mailman3/data/postfix_lmtp
+    hash:/var/lib/mailman/data/virtual-mailman
+transport_maps =
+    hash:/var/lib/mailman3/data/postfix_lmtp
+    hash:/etc/postfix/transport
 mailman_destination_recipient_limit = 1
 
 # postsrsd