Mail Headers (unknown [127.0.0.1])

[kram@]

Hello,

Just completed a server upgrade and move from PLESK 8.6 to 9.2.2 (CentOS 5.3)
When testing email, i get the following headers in mail.

Received: from xxx.xxx.co.za (unknown [127.0.0.1])
by xxx.xxx.co.za (Postfix) with ESMTP

Can anybody help me out with a solution, to this problem.

INSTALLED:

4PSA Clean Server
4PSA SPAM Guardian

The same headers were present, before i installed 4PSA products.


Thanks in advance