最近有客户反映,我司企业邮局不能正常接收YAHOO(雅虎)邮箱发送的邮件,提示发送成功,马上就有退信提示..提示如下:

Hi. This is the qmail-send program at yahoo.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<test@santronic.cn>:
116.11.**.** does not like recipient.
Remote host said: 550 Local user only or Authentication mechanism
Giving up on 116.11.**.**.

--- Below this line is a copy of the message.

 相关问题我司已于雅虎公司反映,正积极处理中.