I was sending email to a friend with a hotmail address but since yesterday messages I send is being returned with the following error message: Delivery to the following recipient failed permanently: I have removed the email address 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 Requested action not taken: mailbox unavailable (state 13). I was told it might be due to service disruptions on hotmail and was told to keep an eye on hotmail service with the downrightnow site, when the status was steady I tried again to send the message but it continues to be sent back