esta voltando essa msg do meu propio servidor !!

ja olhei meus maps_rbl e nao axei nada axo que nao é isso o que pode ser seguei ai o log

This is the Postfix program at host meu.host

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

<joao.benoti@dedini.com.br>: host eml.dedini.com.br[200.205.142.72] said: 550
Default Blocking Message eTrust SCM for SMTP
blackholes.five-ten-sg.com;dnsbl.sorbs.net (in reply to RCPT TO command)