get_number_of_deferred_mailqueue.sh: add support for configuration file.

conf/get_number_of_deferred_mailqueue.conf.sample

@@ -0,0 +1,25 @@
+# ----------------------------------------------------
+# ---
+# - Parameter Settings for script 'get_number_of_deferred_mailqueue.sh'.
+# ---
+# ----------------------------------------------------
+
+# -   notification_addresses
+# -
+# - Where to send notifications
+# -
+# - Defaults to argus@oopen.de
+# -
+#notification_addresses="argus@oopen.de"
+
+
+# - count_warn
+# -
+# - If number of deferred e-mails exceeds give parameter 'count_warn'
+# - an e-mail will be written to adresse(s) given at parameter
+# - 'notification_addresses'.
+# -
+# - Defaults to 100
+# -
+#count_warn=100
+