Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Undeliverable Message from E-mail

  • Please log in to reply
1 reply to this topic

#1 Beaumonts


  • Members
  • 29 posts
  • Local time:10:40 PM

Posted 21 October 2014 - 03:36 AM

I am having trouble replying to an E-mail.  


I have previously replied to this e-mail (about 10 days ago) without any issue.


But now when i try to reply i get Delivery has failed message Your message wasn't delivered because the recipient's email provider rejected it.  


I have tried sending this through Microsoft Exchange, BT POP3 Account and G-mail and they all fail.  


The error messages i get are as follows:-


#< #5.4.4 X-Postfix-smtp: Host or domain name not found.  Name service error for name=mxmail.gov.mu type=A: Host not found> #SMTP#


Remote Server returned '550.5.7.0 Proxy session setup failed on Frontend with '554 5.4.4 SMTPSEND.DNS.NonExistentDomain; nonexistent domain"

BC AdBot (Login to Remove)


#2 sflatechguy


  • BC Advisor
  • 2,257 posts
  • Gender:Male
  • Local time:04:40 PM

Posted 21 October 2014 - 11:39 PM

The 5.4.4 error states the domain name of the email address -- the section after the @ sign -- is non-existent. Check to make sure you entered the email address correctly. It may be the case where the recipient's mail servers are configured incorrectly, or their mail servers are down.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users