diff --git a/templates/Fedora/35/etc/postfix/main.cf b/templates/Fedora/35/etc/postfix/main.cf
index 5b19283..e26183d 100644
--- a/templates/Fedora/35/etc/postfix/main.cf
+++ b/templates/Fedora/35/etc/postfix/main.cf
@@ -762,4 +762,5 @@ disable_vrfy_command = yes
 message_size_limit = {{ postfix_message_size_limit }}
 smtpd_helo_restrictions = reject_unknown_helo_hostname
 smtpd_client_restrictions = reject_unknown_reverse_client_hostname reject_unauth_pipelining
+smtpd_discard_ehlo_keywords = silent-discard, dsn
 
diff --git a/templates/Fedora/36/etc/postfix/main.cf b/templates/Fedora/36/etc/postfix/main.cf
index 5b19283..e26183d 100644
--- a/templates/Fedora/36/etc/postfix/main.cf
+++ b/templates/Fedora/36/etc/postfix/main.cf
@@ -762,4 +762,5 @@ disable_vrfy_command = yes
 message_size_limit = {{ postfix_message_size_limit }}
 smtpd_helo_restrictions = reject_unknown_helo_hostname
 smtpd_client_restrictions = reject_unknown_reverse_client_hostname reject_unauth_pipelining
+smtpd_discard_ehlo_keywords = silent-discard, dsn
 
diff --git a/templates/Fedora/37/etc/postfix/main.cf b/templates/Fedora/37/etc/postfix/main.cf
index 5b19283..e26183d 100644
--- a/templates/Fedora/37/etc/postfix/main.cf
+++ b/templates/Fedora/37/etc/postfix/main.cf
@@ -762,4 +762,5 @@ disable_vrfy_command = yes
 message_size_limit = {{ postfix_message_size_limit }}
 smtpd_helo_restrictions = reject_unknown_helo_hostname
 smtpd_client_restrictions = reject_unknown_reverse_client_hostname reject_unauth_pipelining
+smtpd_discard_ehlo_keywords = silent-discard, dsn