Add file 'README.disable-milter-mail-filter'.

README.disable-milter-mail-filter

@@ -0,0 +1,10 @@
+# ----------
+# Disable Milter (mail filter) for (remote) SMTP client IP address(es).
+
+# see: 
+#     https://www.postfix.org/MILTER_README.html
+#     https://www.postfix.org/MILTER_README.html#per-client
+#
+#     https://www.postfix.org/postconf.5.html#smtpd_milter_maps
+
+

install_postfix_advanced.sh

@@ -1648,6 +1648,16 @@ alias_database =
 ## -
 sender_canonical_maps = btree:/etc/postfix/sender_canonical
 
+## - smtp_generic_maps (default: empty)
+## -
+## - Optional lookup tables that perform address rewriting in the Postfix
+## - SMTP client, typically to transform a locally valid address into a
+## - globally valid address when sending mail across the Internet. This is
+## - needed when the local machine does not have its own Internet domain name,
+## -but uses something like localdomain.local instead.
+## -
+smtp_generic_maps =
+   btree:/etc/postfix/generic
 
 
 ## - Optional lookup tables with mappings from recipient address 
@@ -2854,6 +2864,19 @@ else
    echo_failed
 fi
 
+echononl "   Create file \"generic\""
+if [[ ! -f /etc/postfix/generic ]]; then
+   cat <<EOF > /etc/postfix/generic
+@localhost  @$(hostname -f)
+EOF
+fi
+postmap btree:/etc/postfix/generic
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+fi
+
 
 echononl "   Create file \"virtual_alias_domains\""
 if [[ ! -f /etc/postfix/virtual_alias_domains ]]; then