install_postfix_advanced.sh: remove depredated parameter 'permit_mx_backup'.

conf/install_update_dovecot.conf.sample

@@ -145,7 +145,7 @@ dbhost=""
 # - Cert/Key configurations
 # ---
 
-cert_base_dir="/etc/postfix/ssl"
+cert_base_dir="/etc/dovecot/ssl"
 server_cert=${cert_base_dir}/mailserver.crt
 server_key=${cert_base_dir}/mailserver.key
 dh_pem_file="${cert_base_dir}/dh_4096.pem"

install_postfix_advanced.sh

@@ -2911,8 +2911,13 @@ fi
 cat <<EOF >> /etc/postfix/main.cf
 # Policyd-Weight
    #check_policy_service inet:127.0.0.1:12525,
+# ---------------------------------------------------------------------------------
+# DEPRECATED permit_mx_backup
+#
+# warning: support for restriction "permit_mx_backup" will be removed from Postfix;
 # permit Backup MX
-   permit_mx_backup,
+#   permit_mx_backup,
+# ---------------------------------------------------------------------------------
 # permit, if all restrictions so far passed
    permit
 
@@ -2953,8 +2958,13 @@ smtpd_relay_restrictions =
 # managed by the verify(8) server; see http://www.postfix.org/ADDRESS_VERIFICATION_README.html
 # for more details
    reject_unverified_recipient,
+# ---------------------------------------------------------------------------------
+# DEPRECATED permit_mx_backup
+#
+# warning: support for restriction "permit_mx_backup" will be removed from Postfix;
 # permit Backup MX
-   permit_mx_backup,
+#   permit_mx_backup,
+# ---------------------------------------------------------------------------------
 # permit, if all restrictions so far passed
    permit