diff --git a/install/tpl/debian_postfix.conf.master b/install/tpl/debian_postfix.conf.master
index 36fd9c7bee1db50e1bda17d7e4ad03a194e8a092..b3d7f742910ec11ea0155113c5a6c8893534cdd3 100644
--- a/install/tpl/debian_postfix.conf.master
+++ b/install/tpl/debian_postfix.conf.master
@@ -38,3 +38,5 @@ smtp_tls_security_level = may
 smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
 smtpd_tls_protocols = !SSLv2,!SSLv3
 smtp_tls_protocols = !SSLv2,!SSLv3
+smtpd_tls_exclude_ciphers = RC4, aNULL
+smtp_tls_exclude_ciphers = RC4, aNULL
diff --git a/install/tpl/fedora_postfix.conf.master b/install/tpl/fedora_postfix.conf.master
index 0d4f3a558fc98e72be82848ed5f3728d78152f63..0e868cadcc8c62db664feddf851cd03b8f71d360 100644
--- a/install/tpl/fedora_postfix.conf.master
+++ b/install/tpl/fedora_postfix.conf.master
@@ -35,3 +35,5 @@ smtp_tls_security_level = may
 smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
 smtpd_tls_protocols = !SSLv2,!SSLv3
 smtp_tls_protocols = !SSLv2,!SSLv3
+smtpd_tls_exclude_ciphers = RC4, aNULL
+smtp_tls_exclude_ciphers = RC4, aNULL
diff --git a/install/tpl/gentoo_postfix.conf.master b/install/tpl/gentoo_postfix.conf.master
index c7d8e10c9af5fb11833c087e356b6e0f9010eca3..72e458eba1a28c85dc925519ed99cf0095d6b0e4 100644
--- a/install/tpl/gentoo_postfix.conf.master
+++ b/install/tpl/gentoo_postfix.conf.master
@@ -34,3 +34,5 @@ smtp_tls_security_level = may
 smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
 smtpd_tls_protocols = !SSLv2,!SSLv3
 smtp_tls_protocols = !SSLv2,!SSLv3
+smtpd_tls_exclude_ciphers = RC4, aNULL
+smtp_tls_exclude_ciphers = RC4, aNULL
diff --git a/install/tpl/opensuse_postfix.conf.master b/install/tpl/opensuse_postfix.conf.master
index 9ee3358c35d7c75ec870697ccbc4e8c82d188807..321e7138c5514b93dab755a15851133112a1779b 100644
--- a/install/tpl/opensuse_postfix.conf.master
+++ b/install/tpl/opensuse_postfix.conf.master
@@ -37,3 +37,5 @@ smtp_tls_security_level = may
 smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
 smtpd_tls_protocols = !SSLv2,!SSLv3
 smtp_tls_protocols = !SSLv2,!SSLv3
+smtpd_tls_exclude_ciphers = RC4, aNULL
+smtp_tls_exclude_ciphers = RC4, aNULL