[Mailman-Users] Returned mail: see transcript for details (fwd)

[Chaw Tjia]

I'd Like to ask what is it all about ?
I've made new mailing-list tjia, and have subscribed to the mailing list,
but when I want to repl the confirmation, there were error as follows :

please help me out of this

---------- Forwarded message ----------
Date: Thu, 5 Apr 2001 11:39:52 +0700
From: Mail Delivery Subsystem <MAILER-DAEMON at canibal.petra.ac.id>
To: chawtjia at mark.petra.ac.id
Subject: Returned mail: see transcript for details

The original message was received at Thu, 5 Apr 2001 11:39:52 +0700
from mark.petra.ac.id [202.43.253.6]

   ----- The following addresses had permanent fatal errors -----
"|/home/mailman/mail/wrapper mailcmd tjia"
    (reason: service unavailable)
    (expanded from: <tjia-request at canibal.petra.ac.id>)

   ----- Transcript of session follows -----
smrsh: wrapper not available for sendmail programs
554 5.0.0 "|/home/mailman/mail/wrapper mailcmd tjia"... Service unavailable