From cce7f3ac424d556a0039ea2ee7d1735f9ee619e9 Mon Sep 17 00:00:00 2001 From: Kevin MacMartin Date: Tue, 7 Feb 2017 19:39:12 -0500 Subject: [PATCH] Reject unknown sender domains in postfix --- postfix/main.cf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/postfix/main.cf b/postfix/main.cf index e47bc0d..a50120e 100644 --- a/postfix/main.cf +++ b/postfix/main.cf @@ -43,7 +43,7 @@ smtpd_sasl_path = /var/spool/postfix/private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination -smtpd_sender_restrictions = permit_sasl_authenticated,permit_mynetworks +smtpd_sender_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unknown_sender_domain non_smtpd_milters=inet:127.0.0.1:8891 smtpd_milters=inet:127.0.0.1:8891