I have been having issues today with getting e-mail. I have had it working for several days and have been able to send & receive in both the webmail, Outlook and mobile devices. It seems as though the mail is sending but when retrieving, it sends an error message listed below to the sender.

"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 No Such User Here" (state 14)."

Please help!
Thank you in advance!