Returned mail: User unknown (fwd)

Muhammad Naved (naved@super.net.pk)
Sun, 27 Jul 1997 09:39:33 +0500 (PKT)

---------- Forwarded message ----------
Date: Sat, 26 Jul 1997 21:22:52 -0700 (PDT)
From: Mail Delivery Subsystem <MAILER-DAEMON@livingston.com>
To: naved@server.super.net.pk
Subject: Returned mail: User unknown

The original message was received at Sat, 26 Jul 1997 21:22:48 -0700 (PDT)
from server.super.net.pk [203.130.2.3]

----- The following addresses had permanent fatal errors -----
<users@livingston.com>

----- Transcript of session follows -----
... while talking to server.livingston.com.:
>>> RCPT To:<users@livingston.com>
<<< 550 <users@livingston.com>... User unknown
550 <users@livingston.com>... User unknown

----- Original message follows -----

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Date: Sun, 27 Jul 1997 09:21:14 +0500 (PKT)
From: Muhammad Naved <naved@super.net.pk>
To: users@livingston.com
Subject: Radius information
Message-ID: <Pine.LNX.3.93.970727091607.32239C-100000@server.super.net.pk>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

Dear Sir,
I want to install radius please provide me the all basic and advanced
steps for installtion and its information . Form where i get the radius
software.

Regards
Naved