I have resolved, the problem is post fix that search te domain in your db
to resolve http://forum.parallels.com/showthread.php?109512-Postfix-virtual-mailbox&p=442334&viewfull=1#post442334
Hi, I have a problem whit 2 server whit same domain
to server1 hi have domain xxxxx.com whit webpage and mail
to server2 hi have subdomain nnn.xxxxx.com and other domain yyyyy.com
if the server2 send a email from yyyyyy.com to xxxxxx.com the server search the adress to local and don't...