Postfix

[NetPhantom <netphantom@libero.it>]

Salve.
Sto aggiornando da potato a woody, e, upgradando 
il postfix, ho notato che non riesco più a mandare
email a utenti libero (uso tiscali).
Il log é questo.

Nov 30 12:23:33 gateway postfix/smtpd[991]: connect from gateway[127.0.0.1]
Nov 30 12:23:33 gateway postfix/smtpd[991]: 4395D1017E: client=gateway[127.0.0.1]
Nov 30 12:23:33 gateway postfix/cleanup[992]: 4395D1017E: message-id=<Pine.LNX.4.21.0111301223240.990-100000@gateway>
Nov 30 12:23:33 gateway postfix/qmgr[776]: 4395D1017E: from=<netphantom@libero.it>, size=451, nrcpt=1 (queue active)
Nov 30 12:23:33 gateway postfix/smtpd[991]: disconnect from gateway[127.0.0.1]
Nov 30 12:23:33 gateway postfix/smtp[994]: connect to smtp4.libero.it[193.70.192.54]: server refused mail service (port 25)
Nov 30 12:23:33 gateway postfix/smtp[994]: connect to smtp5.libero.it[193.70.192.55]: Connection refused (port 25)
Nov 30 12:23:33 gateway postfix/smtp[994]: connect to smtp6.libero.it[193.70.192.127]: server refused mail service (port 25)
Nov 30 12:23:34 gateway postfix/smtp[994]: 4395D1017E: to=<netphantom@libero.it>, relay=none, delay=0, status=deferred (connect
to smtp6.libero.it[193.70.192.127]: server refused mail service)


Cosa può essere?