[chenbing@rh5t151 pmail]$ telnet 10.3.3.151 52110
Trying 10.3.3.151...
Connected to rh5t151 (10.3.3.151).
Escape character is '^]'.
+OK  AIMC POP service (aimc.com) is ready.
USER cbsendmail111@wo.com.cn
+OK Please enter password for user <cbsendmail111@wo.com.cn>.
PASS abc111
+OK cbsendmail111@wo.com.cn has 2 message (1620 octets)
lit^H
-ERR BAD command syntax error
list
+OK 2 messages (1620 octets)
1 910
2 710
.
TOP 1 0
+OK 910 octets
From: emailadm@GEN_SYSNAME
To: cbsendmail111@wo.com.cn
Subject: POP代理收信结果
Date: Wed, 14 Dec 2011 14:37:15 +0800
MIME-Version: 1.0
Content-Type: text/html;
        charset="UTF-8"
Content-Transfer-Encoding: 8bit

------解决方案--------------------

没，telnet返回就这个而已：
[chenbing@rh5t151 pmail]$ telnet 10.3.3.151 52110
Trying 10.3.3.151...
Connected to rh5t151 (10.3.3.151).
Escape character is '^]'.
+OK  AIMC POP service (aimc.com) is ready.