一杯茶

我用gmail和163的邮箱给国外客户发邮件,但一直出错,发不出去,总被退回.
不知道怎么回事，谁能帮帮忙？

错误提示:
This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

    admin8@ xuexibbs.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the xuexibbs domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 5.7.1 Unable to relay for admin8@ xuexibbs.com (state 14).

解决方法:

1,你可以使用其他邮箱 再 发一次。
和国外的邮件往来，最好用的是：
hotmail或者yahoo的邮箱,基本上每一个国家都可以接受。

2,如果确信你的地址是正确的，那会不会是你发的附件容量太大，你可以少发点内容试一试。

3,邮箱不存在,无法解决.