10개 정도의 메일을 보내면 3개 정도는 정상적으로 가고 나머지 6-7개 정도는 이런 에러를 나타내면서 리턴이 되버립니다.
관리자님 ! 무슨 문제죠..ㅜㅜ

++++++ 에러 내용 ++++++

----- Original Message -----
From : 사오진 (****@****)
SendTo : (****@****)
CopyTo :
Sent : 2003-04-16 10:28:39 AM
Subject : Fw: !Nmail Send error Data Null


----- Original Message -----
From: "crc.co.kr PostMaster" <****@****>
To: <****@****>
Sent: Tuesday, April 15, 2003 8:46 AM
Subject: !Nmail Send error Data Null


>
> Error Message : Data Null
>
> -- You SendMail --
>
> >> Received: from LocalHost (61.98.187.176)
> >> by crc.co.kr (211.217.193.167) with [Nmail V3.1 20010905(S)]
> >> for <****@****> from <****@****>;
> >> Tue, 15 Apr 2003 08:44:01 +0900
> >> Message-ID: <001001c302df$4e559520$****@****>
> >> From: =?ks_c_5601-1987?B?u+e/wMH4?= <****@****>
> >> To: "=?ks_c_5601-1987?B?udogvPbBpA==?=" <****@****>
> >> Subject: =?ks_c_5601-1987?B?vsiz58fPvcq0z7HuPyDB377TuK68rcShwNS0z7TZ?=
> >> Date: Tue, 15 Apr 2003 08:41:00 +0900
> >> MIME-Version: 1.0
> >> Content-Type: multipart/alternative;
> >> boundary="----=_NextPart_000_000D_01C3032A.BDC7BF00"
> >> X-Priority: 3
> >> X-MSMail-Priority: Normal
> >> X-Mailer: Microsoft Outlook Express 6.***-****-****
> >> X-MimeOLE: Produced By Microsoft MimeOLE V6.***-****-****