sendmail问题，敬请帮助解决

seraphim

现在用sendmail给别的邮件地址发信，发信用户是apache@localhost.localdoman，如何修改成apache@interact.minidns.net这样的形式？

直接在webmin的user mailbox中发邮件可以，但是用bugzilla自动发送邮件，就抱错，下面是被退回的信件通知：
The original message was received at Mon, 15 Dec 2003 18:49:45 +0800
from InteractGW [127.0.0.1]

----- The following addresses had permanent fatal errors -----
<chunjiangl@interact.net.cn>;
(reason: 554 <apache@localhost.localdomain>;: Sender address rejected: Access
denied)

----- Transcript of session follows -----
... while talking to 263commail.com.:
>;>;>; RCPT To:<chunjiangl@interact.net.cn>;
<<< 554 <apache@localhost.localdomain>;: Sender address rejected: Access denied
554 5.0.0 Service unavailable


local-host-names文件内容：
[root@InteractGW mail]# more local-host-names
interact.minidns.net

interact.minidns.net是申请的一个免费的域名，指向这台机器的静态IP。这台机器上有两个网卡，一个是内网IP，一个就是外网的静态IP。

我已经在我的DNS服务商那里设置了MX，如下图：