[Postfix espanol] error

[Wcom]

Este es otro error que me tira y no se solo tengo problema con estos
dominios con los demas funca todo de 10

El  mensaje de error

> This is the Postfix program at host ns1.cccc.com.ar.
>
> I'm sorry to have to inform you that the message returned
> below could not be delivered to one or more destinations.
>
> For further assistance, please send mail to <postmaster>
>
> If you do so, please include this problem report. You can
> delete your own text from the message returned below.
>
> The Postfix program
>
> <ltidone en savaglio-tbwa.com.ar>: host
mail.savaglio-tbwa.com.ar[200.32.9.50]
>     refused to talk to me: 504 DNS verification of sending machine failed:
no
>     mail will be accepted
El log
Jun 10 15:13:26 ns1 postfix/smtp[3501]: E392C42388:
to=<ltidone en savaglio-tbwa.com.ar>,
relay=mail.savaglio-tbwa.com.ar[200.32.9.50], delay=2, status=bounced (host
mail.savaglio-tbwa.com.ar[200.32.9.50] refused to talk to me: 504 DNS
verification of sending machine failed: no mail will be accepted)
Jun 10 15:13:26 ns1 postfix/cleanup[3499]: A7A284238D:
message-id=<20020610181326.A7A284238D en ns1.cccc.com.ar>
Jun 10 15:13:26 ns1 postfix/qmgr[10243]: A7A284238D: from=<>, size=4538,
nrcpt=1 (queue active)
 Saludos espero me tiren un par de ideas


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