+ driver = accept
+ domains = +local_domains
+ transport = t1
+
+virtual:
+ driver = redirect
+ domains = *.virt.test.ex
+ address_data = ${lookup {TESTNUM.alias.${extract {1}{.}{$domain}}} \
+ dsearch{DIR/aux-fixed} {$value}fail}
+ data = ${lookup{$local_part}lsearch{DIR/aux-fixed/$address_data}}
+ no_more