diff --git a/roles/mail/templates/postfix/main.cf.j2 b/roles/mail/templates/postfix/main.cf.j2
index 0cad6cc..e4dd850 100644
--- a/roles/mail/templates/postfix/main.cf.j2
+++ b/roles/mail/templates/postfix/main.cf.j2
@@ -28,20 +28,19 @@ alias_database = hash:/etc/aliases
 relayhost =
 
 # TLS parameters
-smtp_use_tls = yes
-smtp_tls_loglevel = 2
+smtp_tls_security_level = may
+smtp_tls_loglevel = 1
 
 smtpd_tls_cert_file=/etc/postfix/ssl/{{ mail_server }}.crt
 smtpd_tls_key_file=/etc/postfix/ssl/{{ mail_server }}.key
 smtpd_tls_CAfile=/etc/acme/lets-encrypt-x3-cross-signed.pem
-smtpd_use_tls=yes
 smtpd_tls_security_level = may
 smtpd_tls_auth_only = yes
-
 smtpd_tls_ciphers = medium
+smtpd_tls_received_header = yes
 
-smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
 
 # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
 # information on enabling SSL in the smtp client.