Hello,

I have some problems with mails, the same my friend.
Reporting-MTA: dns;dub0-wss1-s6.dub0.hotmail.com
Received-From-MTA: dns;DUB403-EAS228
Arrival-Date: Thu, 17 Oct 2013 23:14:33 -0700

Final-Recipient: rfc822;................@freggia.com
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;554 The mail could not be delivered to the recipient because the domain is not reachable. Please check the domain and try again (1479978268:301:-2147467259)

and the same for
Reporting-MTA: dns;dub0-wss1-s3.dub0.hotmail.com
Received-From-MTA: dns;DUB126-DS14
Arrival-Date: Thu, 17 Oct 2013 05:04:25 -0700

Final-Recipient: rfc822;..............................@mat.waw.pl
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;554 The mail could not be delivered to the recipient because the domain is not reachable. Please check the domain and try again (1479978268:301:-2147467259)

Thank you for help.
My domain is vinatoken.com.vn, when i send mail 

The error message is:

" This is an automatically generated Delivery Status Notification.

 

Delivery to the following recipients failed."

 


How do I interpret the delivery failure message that I have received?


Reporting-MTA: dns;bay0-omc2-s4.bay0.hotmail.com
Received-From-MTA: dns;BAY170-W128
Arrival-Date: Fri, 23 Aug 2013 20:35:34 -0700

Final-Recipient: rfc822;*** Email address is removed for privacy ***
Action: failed
Status: 5.5.0
Diagnostic-Code: smtp;550-Verification failed for <*** Email address is removed for privacy ***>
550-No Such User Here
550 Sender verify failed