does anyone can tell me why i got this rejected error message !

Subject: Rejected posting to NV-L AT UCSBVM.UCSB DOT EDU

LISTSERV does not allow the distribution of empty messages to a mailing list,
because some users  are unable to see the "Subject:"  field from the original
message.

------------------------ Rejected message (21 lines) --------------------------
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From: Brian CL Hwang <bhwang AT tw.ibm DOT com>
To: <NV-L AT ucsbvm.ucsb DOT edu>
Subject: Netview 5.0 Installation problem
Message-ID: <5030100024952979000002L092*@MHS>
Date: Mon, 24 Aug 1998 08:53:57 -0400
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Best Regards,

 Brian Hwang,
 IBM,Taiwan
 TEL:886-7-213-5523
 FAX:886-7-216-5488
 E-Mail: bhwang AT tw.ibm DOT com