为什么Hotmail拒收我们的邮件

yusker_1

This is the mail system at mail.yusker.com.

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                   The mail system

<kazamanismylove@hotmail.com>: host mx3.hotmail.com[65.54.244.200] said: 550
    Mail rejected by Windows Live Hotmail for policy reasons. We generally do
    not accept email from dynamic IP's as they are not typically used to
    deliver unauthenticated SMTP email to an Internet mail server.
    http://www.spamhaus.org maintains lists of dynamic and residential IP
    addresses. Contact your ISP to determine which authorized SMTP relay
    servers to send your mail through (or) request a static and dedicated IP
    before attempting to send mail. For additional information about
    Microsoft's technical guidelines, please refer to:
    http://postmaster.live.com/Guidelines.aspx (in reply to MAIL FROM command)

Reporting-MTA: dns; mail.yusker.com
X-Postfix-Queue-ID: 512EA1071BB
X-Postfix-Sender: rfc822; noreply@mail.yusker.com
Arrival-Date: Sun, 30 Sep 2007 10:51:15 +0800 (CST)

Final-Recipient: rfc822; kazamanismylove@hotmail.com
Original-Recipient: rfc822;kazamanismylove@hotmail.com
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx3.hotmail.com
Diagnostic-Code: smtp; 550 Mail rejected by Windows Live Hotmail for policy
    reasons. We generally do not accept email from dynamic IP's as they are not
    typically used to deliver unauthenticated SMTP email to an Internet mail
    server. http://www.spamhaus.org maintains lists of dynamic and residential
    IP addresses. Contact your ISP to determine which authorized SMTP relay
    servers to send your mail through (or) request a static and dedicated IP
    before attempting to send mail. For additional information about
    Microsoft's technical guidelines, please refer to:
    http://postmaster.live.com/Guidelines.aspx

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这是什么问题，请高手回答

ardi

翻译下这段就知道了
host mx3.hotmail.com[65.54.244.200] said: 550
    Mail rejected by Windows Live Hotmail for policy reasons. We generally do
    not accept email from dynamic IP's as they are not typically used to
    deliver unauthenticated SMTP email to an Internet mail server.
    http://www.spamhaus.org maintains lists of dynamic and residential IP
    addresses. Contact your ISP to determine which authorized SMTP relay
    servers to send your mail through (or) request a static and dedicated IP
    before attempting to send mail. For additional information about
    Microsoft's technical guidelines, please refer to:
    http://postmaster.live.com/Guidelines.aspx (in reply to MAIL FROM command)