[Gfoss] [Mail delivery failed: returning message to sender]

pare che fiduciali.it abbia i suoi problemini. Ho chiesto spiegazioni, e ottengo:

-------- Messaggio Originale --------
Oggetto: Mail delivery failed: returning message to sender
Data: Wed, 19 Dec 2007 19:18:32 +0100
Da: Mail Delivery System <Mailer-Daemon@faunalia.it>
A: cavallini@faunalia.it

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

   webmaster@fiduciali.it
     SMTP error from remote mail server after RCPT TO:<webmaster@fiduciali.it>:
     host mx1.fiduciali.it [62.149.128.166]: 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.5.3 - chkuser)
--
Paolo Cavallini, see: http://www.faunalia.it/pc