Mail: Relay access denied

[ZAPP?!]

Hello!


My server bounces with email messages when people send e-mail to my server/domain.


Server:

• PLESK 8.2
  CENT OS 4

Delivery Status Notification by Google
I've changed the red Text with the original.

This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

[email protected]

Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 13): 554 <[email protected]>: Relay access denied

----- Original message -----

Received: by 10.142.187.2 with SMTP id k2mr1007206wff.1194739865030;
Sat, 10 Nov 2007 16:11:05 -0800 (PST)
Received: by 10.142.43.6 with HTTP; Sat, 10 Nov 2007 16:11:04 -0800 (PST)
Message-ID: <[email protected]>
Date: Sun, 11 Nov 2007 01:11:04 +0100
From: "zapp-a-lot XXXXXX" <[email protected]>
To: [email protected]
Subject: Test
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email protected]

----- End of message -----

Does anybody know a reason for this problem?

 

[Monica@]

check this:
http://kb.swsoft.com/article_22_168_en.html
also here's the list of all bounces with the explanation:
http://kb.swsoft.com/en/1372