MD出现奇怪问题，请各位帮忙解决 谢谢

siny222

各位大侠：<br>
　　<br>
　我的MD一个帐号不能接收任何邮件，但可以发信，其它的帐号发信给它就说是：No valid command found<br>
　下面是用其它帐号发给这个帐号的退信：<br>
<br>
　Your message to XXX@chinagci.com does not contain a valid command for this mail server to process. No action has been taken. For information on valid commands, send email to XXX@chinagci.com with a blank Subject and just the word "HELP" in the body. (You may be able to create that email by clicking on <mailto:XXXi@chinagci.com?Body=HELP>)<br>
　各位帮帮忙，谢谢<br>
<br>

lqdjgzjl

你的DNS解析建立的正确吗？你的邮件DNS看来好象有问题！