diff --git a/roles/postfix-mailman3/templates/postfix/main.cf.j2 b/roles/postfix-mailman3/templates/postfix/main.cf.j2
index 67a57108..6723455b 100644
--- a/roles/postfix-mailman3/templates/postfix/main.cf.j2
+++ b/roles/postfix-mailman3/templates/postfix/main.cf.j2
@@ -20,6 +20,9 @@ smtpd_tls_cert_file=/etc/letsencrypt/live/{{ mailman3.postfix_domain }}/fullchai
 smtpd_tls_key_file=/etc/letsencrypt/live/{{ mailman3.postfix_domain }}/privkey.pem
 smtpd_use_tls=yes
 smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtp_use_tls=yes
+smtp_tls_security_level=may
+smtp_tls_loglevel=1
 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
 
 # OpenDKIM