I had 2 domains working just great till 2 days ago. Not sure what changed but now I can send and receive from 1 domain (graystarr.com) I can send from domain 2 (nuendorocks.com) however I get this error when I try to send mail to domain 2
This is an automatically generated Delivery Status Notification
Delivery to the following recipient failed permanently:
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 sorry, mail to that recipient is not accepted (#5.7.1) (state 14).
Ive been battling this for 2 days now. I have uninstalled and reinstalled several times. Can someone please help?