请教高手，域不能收取到外网信件！

juan0815

域不能接收外网的邮件，服务器上同时跑的还有其他几个域，收发都正常，就这个域有问题，麻烦大家给解释一下。谢谢！报错如下：
11-Jun-2009 03:03:20.70 tcp_intranet              J 0 stephenmurrel4u@alice.it rfc822; shio@shio.com.cn  web.interion04.nl (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn
11-Jun-2009 12:50:45.40 tcp_intranet              J 0 r0728b485@sina.com rfc822; shio@shio.com.cn  PC-200905250708 (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn
11-Jun-2009 12:50:47.36 tcp_intranet              J 0 r0728b485@sina.com rfc822; shio@shio.com.cn  PC-200905250708 (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn
11-Jun-2009 13:10:51.81 tcp_intranet              J 0 r0728b485@sina.com rfc822; shio@shio.com.cn  PC-200905250708 (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn
11-Jun-2009 13:10:53.76 tcp_intranet              J 0 r0728b485@sina.com rfc822; shio@shio.com.cn  PC-200905250708 (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn
11-Jun-2009 13:31:01.76 tcp_intranet              J 0 test@jiaquan.8800.org rfc822; shio@shio.com.cn  jiaquan.8800.org (localhost [127.0.0.1]) 550 5.7.1 Internet posting are not permitted: shio@shio.com.cn

juan0815

没有人在知道吗？