diff --git a/roles/mail/tasks/main.yml b/roles/mail/tasks/main.yml
index e54c659..02cac65 100644
--- a/roles/mail/tasks/main.yml
+++ b/roles/mail/tasks/main.yml
@@ -10,6 +10,7 @@
   - dovecot-ldap
   - dovecot-managesieved
   - dovecot-sieve
+  - mailman
   - postfix
   - postfix-ldap
   - postfix-policyd-spf-python
diff --git a/roles/mail/templates/postfix/main.cf.j2 b/roles/mail/templates/postfix/main.cf.j2
index faf74e8..ef969a1 100644
--- a/roles/mail/templates/postfix/main.cf.j2
+++ b/roles/mail/templates/postfix/main.cf.j2
@@ -48,7 +48,7 @@ smtpd_sasl_path = private/auth
 smtpd_sasl_auth_enable = yes
 smtpd_sasl_security_options = noanonymous
 
-smtpd_helo_restrictions = permit_mynetwork
+smtpd_helo_restrictions = permit_mynetworks
                           warn_if_reject reject_non_fqdn_hostname
                           check_helo_access hash:/etc/postfix/helo_access
                           #check_client_access cidr:/etc/postfix/client_access