Mail Server疑似被攻擊,請問該如何防堵

[super2k]

您好.
我的Mail Server最近收到大量的退信.每分鐘約10封的攻擊.
收件人與Remote host每封信都會變換
請問雷電MailD有工具可以防堵這種攻擊嗎?該如何設定呢?

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標題:Unavailable Delivery : Mail was rejected
內容:This is a return mail sent by system automatically, please do not reply this mail.
Your mail can not be delivered successfully due to the reason below:

Response Message :
To: onurvbulletin@ymail.com
Subject: A new friend!
Remote host: 98.136.96.76
Remote server replied: 552 1 Requested mail action aborted, mailbox not found
===========
This is a return mail sent by system automatically, please do not reply this mail.
Your mail can not be delivered successfully due to the reason below:

Response Message :
To: chuck22288@netscape.net
Subject: Made for each other
Remote host: 98.136.96.92
Remote server replied: 554 30 Sorry, your message to chuck22288@netscape.net cannot be delivered. This mailbox is disabled (554.30).

[Arnor]

您的伺服器很可能已成跳板，
請檢查記錄和\Outboxes 目錄是否有積存大量信件來判斷。

如是，請參考置頂文章處理
http://www.raidenhttpd.com/jlbb/viewtopic.php?t=17009
_________________
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素還尊
Team John Long.
Email: arnor@raidenmaild.com
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