为什么从某个域名发来的信总是被放到坏的列队中？？？

windbamboo

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Return-Path: <？？？@katata.co.jp>
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From: "？？？" <？？？@katata.co.jp>（这个就是对方公司的邮箱地址了，只要是从@katata.co.jp发来的 ，大部分都会被放到坏的列队中）
To:***@xxx.com.cn（具体的地址就不写了，这个就是我们公司的邮箱地址，有很多人，全部都被防到了坏的列队）
Cc: ***@xxx.com.cn（具体的地址就不写了，这个就是我们公司的邮箱地址，有很多人，全部都被防到了坏的列队）
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上面这些就是邮件的发送信息了，达人们帮我看看吧，只要是从katata.co.jp 这个地址发出来的信件大部分都会被放到坏的列队中，今天早上竟然看到了23封信被放到了坏的列队中

windbamboo

没人帮我看看啊？~