[Mail] sos,sendmail的垃圾邮件问题 在线等

[weixin_38058377]

公司邮件服务为sendmail/redhat7.3 从前天开始不断的收到垃圾邮件，每天至少要收几乎一摸一样的邮件上千封，我找不出邮件服务器哪里出了问题，现在把邮件内容贴出来，请各位大虾救命：

The original message was received at Wed, 7 Jan 2004 15:25:06 +0800
from localhost
with id i077Lvj18396

   ----- The following addresses had permanent fatal errors -----
<[e-mail]>;
    (reason: 550 <[e-mail]>;... User unknown)

   ----- Transcript of session follows -----
... while talking to pop.2911.net.:
>;>;>; RCPT To:<[e-mail]>;
<<< 550 <[e-mail]>;... User unknown
550 5.1.1 <[e-mail]>;... User unknown
550 5.1.1 MAILER-DAEMON... User unknown


发件人地址：[e-mail]
收件人地址：[e-mail]
因为postmaster属于root组，做了映射之后，发往root组的邮件就直接发到我的信箱里，请高手救命，不然我的信箱快要爆炸了！