企业云邮箱收不到对方公司邮箱发的邮件

我们的企业云邮箱（pf@yuerongtong.com）收不到对方公司邮箱（luochen@eims.com.cn ）的邮件，总是被退回
但是对方用QQ邮箱我们可以收到
以下是对方给我们发邮件时收到的退信：

如下是退回邮件的内容：
From:Mail Delivery System
Date:2015-02-27 08:51
To:luochen
Subject:Undelivered Mail Returned to Sender




This is the mail system at host mail.3km.cc.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

  The mail system

< pf@yuerongtong.com>: host mxn.mxhichina.com[42.120.219.27] said: 554 Reject by
   behaviour spam at DATA State(Connection IP
   address:14.17.66.152)ANTISPAM_BAT[01201311R43c9, r41f02009]: the connecting
   ip(14.17.66.152) is listed on the rbl sites(cblless.anti-spam.org.cn) (in
   reply to DATA command)