Problemi invio posta con Postfix

[jaym]

Salve a tutti!
Ho questo problema:
Ho un webserver con installato Postfix 2.0.16 che si occupa dell'invio della posta tramite PHP.
Fino a qualche tempo fa il server ha inviato correttamente le mail, ma da un po' da qualche problema.
Infatti la funziona mail di PHP non ritorna nessun errore, ma le mail non vengono inviate.

Nei maillog viene scritto questo:

Nov  8 09:25:33 PIPPO sendmail[21153]: jA88PXcx021153: from=apache, size=386, class=0, nrcpts=2, msgid=<200511080825.jA88PXcx021153@PIPPO.pippo.it>, relay=apache@localhost
Nov  8 09:25:33 PIPPO postfix/smtpd[21155]: fatal: unknown notify_classes value "pippo@pippo.it" in "pippo@pippo.it"
Nov  8 09:25:34 PIPPO postfix/master[20739]: warning: process /usr/libexec/postfix/smtpd pid 21155 exit status 1
Nov  8 09:25:34 PIPPO postfix/master[20739]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling
Nov  8 09:25:34 PIPPO sendmail[21153]: jA88PXcx021153: to=Altro Ricevente <mail@dominio.com>,mail2@tin.it, ctladdr=apache (48/48), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=60386, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection reset by [127.0.0.1]

Come configurazione ho settato questi parametri

alias_database = hash:/etc/postfix/aliases
relayhost = mail.amtel.it
notify_classes = pippo@pippo.it
myhostname = pippo.it
myorigin = pippo

Quale potrebbe essere il problema?

[l.golinelli]

notify_classes = pippo@pippo.it

Commentalo e dai un:

postfix reload

[l.golinelli]

Ecco come si usa:

notify_classes (default: resource, software)

The list of error classes that are reported to the postmaster. The default is to report only the most serious problems. The paranoid may wish to turn on the policy (UCE and mail relaying) and protocol error (broken mail software) reports.

The error classes are:

bounce (also implies 2bounce)
Send the postmaster copies of the headers of bounced mail, and send transcripts of SMTP sessions when Postfix rejects mail. The notification is sent to the address specified with the bounce_notice_recipient configuration parameter (default: postmaster).
2bounce
Send undeliverable bounced mail to the postmaster. The notification is sent to the address specified with the 2bounce_notice_recipient configuration parameter (default: postmaster).
delay
Send the postmaster copies of the headers of delayed mail. The notification is sent to the address specified with the delay_notice_recipient configuration parameter (default: postmaster).
policy
Send the postmaster a transcript of the SMTP session when a client request was rejected because of (UCE) policy. The notification is sent to the address specified with the error_notice_recipient configuration parameter (default: postmaster).
protocol
Send the postmaster a transcript of the SMTP session in case of client or server protocol errors. The notification is sent to the address specified with the error_notice_recipient configuration parameter (default: postmaster).
resource
Inform the postmaster of mail not delivered due to resource problems. The notification is sent to the address specified with the error_notice_recipient configuration parameter (default: postmaster).
software
Inform the postmaster of mail not delivered due to software problems. The notification is sent to the address specified with the error_notice_recipient configuration parameter (default: postmaster).

Examples:

notify_classes = bounce, delay, policy, protocol, resource, software
notify_classes = 2bounce, resource, software

[jaym]

Funziona!
Grazie mille.