diff --git a/postfix/header_checks b/postfix/header_checks
new file mode 100644
index 0000000..85ced24
--- /dev/null
+++ b/postfix/header_checks
@@ -0,0 +1,12 @@
+# HEADER_CHECKS(5)                                              HEADER_CHECKS(5)
+
+/^Received:.*with ESMTPSA/      IGNORE
+/^X-Originating-IP:/            IGNORE
+/^X-Mailer:/                    IGNORE
+/^Mime-Version:/                IGNORE
+/^User-Agent:/                  IGNORE
+/^Received:.*with ESMTPSA/      IGNORE
+/^X-Originating-IP:/            IGNORE
+/^X-Mailer:/                    IGNORE
+/^Mime-Version:/                IGNORE
+/^User-Agent:/                  IGNORE
diff --git a/postfix/main.cf b/postfix/main.cf
index a081c9c..148d9de 100644
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -46,6 +46,10 @@ smtpd_sasl_local_domain = $myhostname
 smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination
 smtpd_sender_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unknown_sender_domain
 
+header_checks = regexp:/etc/postfix/header_checks
+mime_header_checks = $header_checks
+nested_header_checks = $header_checks
+
 non_smtpd_milters=inet:127.0.0.1:8891
 smtpd_milters=inet:127.0.0.1:8891