公司是ADSL 我在花生壳申请了一个动态域名

例如  l.gicp.com     测试已经能很好的链接到了

邮件服务器的IP 放在了 DMZ区

安装好emos后发现 域是  gicp.com  没有前面的L  

新建立了一个    l.gicp.com    在下面建立用户  自己发自己没问题

向外部发邮件有错误，无法发出。错误见最后

请问是什么错误，需要怎么修改。 怎么能把gicp.net   改为 l.gicp.net  需要修改哪几个文件。谢谢

建立别名的时候  老是提示“输入错误，请检一次”


错误：
This is the mail system at host mail.gicp.net.

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

<littlewangbo@hotmail.com>: host mx4.hotmail.com[65.54.244.104] said: 550
    DY-001 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 e-mail to an Internet mail server.
    http://www.spamhaus.org maintains lists of dynamic and residential IP
    addresses. If you are not an email/network admin please contact your
    E-mail/Internet Service Provider for help. Email/network admins, please
    visit http://postmaster.live.com for email delivery information and support
    (in reply to MAIL FROM command)

版主们都去看奥运了么、有时间麻烦帮忙解答下。谢谢。新人也需要培养啊

我的跟LZ状况一样。。。。不过我是固定IP
各位老大帮帮忙啦

We    generally do not accept email from dynamic IP's as they are not typically
    used to deliver unauthenticated SMTP e-mail to an Internet mail server.

这就是原因，意思是：

我们 一般不接受电子邮件从动态IP的，因为他们通常不会用来传送未经SMTP电子邮件到Internet的邮件服务器。

不要一出问题就提问，看不懂英文可以用软件翻译一下。

不过有一点可以肯定，楼主你的服务器可以发外网邮件了