Add support for MatterMost (MM) service.

conf/post_decalrations.conf

@@ -240,6 +240,20 @@ for _ip in $forward_http_server_ips ; do
    forward_http_server_ip_arr+=("$_ip")
 done
 
+# ---
+# - IP Addresses MatterMost Service
+# ---
+# local
+declare -a mm_server_ip_arr
+for _ip in $mm_server_ips ; do
+   mm_server_ip_arr+=("$_ip")
+done
+# DMZ
+declare -a forward_mm_server_ip_arr
+for _ip in $forward_mm_server_ips ; do
+   forward_mm_server_ip_arr+=("$_ip")
+done
+
 # ---
 # - IP Addresses FTP Server
 # ---