if $params->{'with_email'};
##
+ # "with postal mail invoices" checkbox
+ ##
+
+ push @where,
+ "EXISTS ( SELECT 1 FROM cust_main_invoice
+ WHERE cust_main_invoice.custnum = cust_main.custnum
+ AND dest = 'POST' )"
+ if $params->{'POST'};
+
+ ##
# "without postal mail invoices" checkbox
##