Mail server problem or ISP problem?

Hello,

I got today a message back from my mail server with this:


-----Original Message-----
From: Mail Delivery Subsystem [mailto:postmaster@mail.domain.ro]
Sent: Thursday, May 26, 2005 11:16 AM
To: user@domain.ro
Subject: Returned mail


This is an informative message sent by at
mail.domain.ro.
The server was not able to deliver your mail message to the following
addresses:

<'user@mobiliare.ro'> (mail.domain.ro: Host not found)



that mail.domain.ro is a domain where i have a mail server installed. I know that today the isp where that mail server is on had some problems. Can that be from not being able to resolve DNS's ? Like when ISP down couldnt even resolve DNS, or is it from the Mail Server?


also it sent me an attached file details.txt

Final-Recipient: rfc822;'user@xnet.ro'
Action: failed
Status: 5.4.4
Diagnostic-Code: DNS; Host not found

What is this? THX Sorry if i didnt post in right forum.

 

 

 

 

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