Use $virtual_alias_domains not $virtual_mailbox_domains.

Quoting postconf(5):

    smtpd_reject_unlisted_recipient (default: yes)
        Request that the Postfix SMTP server rejects mail for unknown recipient
        addresses, even when no explicit reject_unlisted_recipient access
        restriction is specified. This prevents the Postfix queue from filling
        up with undeliverable MAILER-DAEMON messages.

        An address is always considered "known" when it matches a virtual(5)
        alias or a canonical(5) mapping.
        […]
        * The recipient domain matches $virtual_alias_domains but the recipient
          is not listed in $virtual_alias_maps.
        * The recipient domain matches $virtual_mailbox_domains but the
          recipient is not listed in $virtual_mailbox_maps, and
          $virtual_mailbox_maps is not null.

Since we alias everything under special, "invalid", domains (mda.f.o and
mailman.f.o), our $virtual_mailbox_maps was null, which led to
reject_unlisted_recipient not being triggered for say, "noone@fripost.org".
However, replacing $virtual_mailbox_domains with $virtual_alias_domains fits
into the second point above.

3 files changed, 3 insertions, 3 deletions

diff --git a/roles/MX/templates/etc/postfix/virtual/mailbox_domains.cf.j2 b/roles/MX/templates/etc/postfix/virtual/domains.cf.j2
index 1cb8add..1cb8add 100644
--- a/roles/MX/templates/etc/postfix/virtual/mailbox_domains.cf.j2
+++ b/roles/MX/templates/etc/postfix/virtual/domains.cf.j2
diff --git a/roles/MX/templates/etc/postfix/virtual/list.cf.j2 b/roles/MX/templates/etc/postfix/virtual/list.cf.j2
index a2ff325..5de79d9 100644
--- a/roles/MX/templates/etc/postfix/virtual/list.cf.j2
+++ b/roles/MX/templates/etc/postfix/virtual/list.cf.j2
@@ -10,4 +10,4 @@ query_filter     = (&(objectClass=FripostVirtualList)(!(objectClass=FripostPendi
 result_attribute = fvl
 # Use a dedicated "virtual" domain to decongestion potential bottlenecks
 # on trivial_rewrite(8) due to slow LDAP lookups in tranport_maps.
-result_format    = %D/%U@lists.fripost.org
+result_format    = %D/%U@mailman.fripost.org
diff --git a/roles/MX/templates/etc/postfix/virtual/transport.j2 b/roles/MX/templates/etc/postfix/virtual/transport.j2
index 85715a0..9eac2be 100644
--- a/roles/MX/templates/etc/postfix/virtual/transport.j2
+++ b/roles/MX/templates/etc/postfix/virtual/transport.j2
@@ -7,7 +7,7 @@ mda.fripost.org smtp:[mda.fripost.org]:{{ postfix_instance.IMAP.port }}
 {% endif %}
 
 {% if 'lists' in group_names %}
-lists.fripost.org smtpl:[127.0.0.1]:{{ postfix_instance.lists.port }}
+mailman.fripost.org smtpl:[127.0.0.1]:{{ postfix_instance.lists.port }}
 {% else %}
-lists.fripost.org smtp:[lists.fripost.org]:{{ postfix_instance.lists.port }}
+mailman.fripost.org smtp:[lists.fripost.org]:{{ postfix_instance.lists.port }}
 {% endif %}