我试图设置后缀使用多域邮件。
现在,我可以向user@ns3289160.ip-5-135-180.eu发送邮件,但向user@domain2.com发送邮件不起作用:我在尝试向该地址发送电子邮件时收到以下电子邮件
Delivery to the following recipient failed permanently:
user@domain2.com
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server