diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 5a8c0fa7..4e8c577f 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -9,7 +9,7 @@ smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_una
 alias_maps = hash:/etc/aliases
 alias_database = hash:/etc/aliases
 relayhost =
-mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 [fd4d:6169:6c63:6f77::]/64 !172.22.1.1
+mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 [fd4d:6169:6c63:6f77::]/64
 mailbox_size_limit = 0
 recipient_delimiter = +
 inet_interfaces = all
diff --git a/data/conf/postfix/master.cf b/data/conf/postfix/master.cf
index 77790d56..4911271e 100644
--- a/data/conf/postfix/master.cf
+++ b/data/conf/postfix/master.cf
@@ -12,6 +12,11 @@ submission inet n       -       n       -       -       smtpd
 588 inet n      -       n       -       -       smtpd
   -o smtpd_client_restrictions=permit_mynetworks,permit_sasl_authenticated,reject
   -o smtpd_tls_auth_only=no
+590 inet n      -       n       -       -       smtpd
+  -o smtpd_client_restrictions=permit_mynetworks,reject
+  -o smtpd_tls_auth_only=no
+  -o smtpd_milters=
+  -o non_smtpd_milters=
 smtp_enforced_tls      unix  -       -       n       -       -       smtp
   -o smtp_tls_security_level=encrypt
   -o syslog_name=enforced-tls-smtp