Hi , One of my colleagues wants to subscribe to this email group. But he can not send subscription email to [email protected] < [email protected]> or [email protected] < [email protected]>
The error message is like this """"""""""""""" Delivery to the following recipient failed permanently: [email protected] Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient 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 mail to [email protected] not accepted here (state 13). """""""""""""""""' Could you please tell us what is the subscription email address now? Thanks. -- Guodong Wang（王国栋） Email:[email protected]
