请帮忙分析下面的内容，是否有错误？对方为什么收不到? 谢谢！
220 smtp.sina.com.cn ESMTP SINAMAIL (Postfix Rules!)
EHLO smtp.sina.com.cn
250-smtp.sina.com.cn
250-PIPELINING
250-SIZE 19660800
250-VRFY
250-ETRN
250-AUTH LOGIN
250-AUTH=LOGIN
250 8BITMIME
AUTH LOGIN
334 VXNlcm5hbWU6
dGVzdGluZzAy
334 UGFzc3dvcmQ6
MDAwMDAw
235 Authentication successful
MAIL FROM:<
testing02@sina.com>
250 Ok
RCPT TO:<
testing02@sina.com>
250 Ok
DATA
354 Please start mail input.
From: <
testing02@sina.com>
To: <
testing02@sina.com>
Subject:
Date: Wed, 23 Aug 2006 14:05:39 +0800
Importance: normal
X-Priority: 3
MIME-Version: 1.0
Content-Type: text/plain;
charset=utf-8
Content-Transfer-Encoding: base64
.
250 Mail queued for delivery.
QUIT
221 Closing connection. Good bye.
