my $rulename = $vars->{RULE} // 'unknown';
- my $bcc_to = PMG::Utils::subst_values($self->{target}, $vars);
+ my $bcc_to = PMG::Utils::subst_values_for_header($self->{target}, $vars);
if ($bcc_to =~ m/^\s*$/) {
# this happens if a notification is triggered by bounce mails