diff --git a/postfix/main.cf b/postfix/main.cf
index a50120e..dfa797b 100644
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -36,7 +36,7 @@ smtpd_tls_protocols = !SSLv2, !SSLv3
 smtpd_tls_ciphers = high
 smtpd_tls_cert_file = /etc/letsencrypt/live/$mydomain/fullchain.pem
 smtpd_tls_key_file = /etc/letsencrypt/live/$mydomain/privkey.pem
-smtpd_tls_security_level = encrypt
+smtpd_tls_security_level = may
 smtpd_sasl_auth_enable = yes
 smtpd_sasl_type = dovecot
 smtpd_sasl_path = /var/spool/postfix/private/auth