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Undeliverable Message from E-mail


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#1 Beaumonts

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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"



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#2 sflatechguy

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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.






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