+=item C<$IgnoreCcRegexp>
+
+C<$IgnoreCcRegexp> is a regexp to exclude addresses from automatic addition
+to the Cc list. Use this for addresses that are I<not> received by RT but
+are sometimes added to Cc lists by mistake. Unlike C<$RTAddressRegexp>,
+these addresses can still receive email from RT otherwise.
+
+=cut
+
+Set($IgnoreCcRegexp, undef);
+