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  1. #1
    Join Date
    Jan 2005

    Mail server problem or ISP problem?


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

    -----Original Message-----
    From: Mail Delivery Subsystem [mailto:[email protected]]
    Sent: Thursday, May 26, 2005 11:16 AM
    To: [email protected]
    Subject: Returned mail

    This is an informative message sent by at
    The server was not able to deliver your mail message to the following

    <[email protected]'> ( Host not found)

    that 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;[email protected]'
    Action: failed
    Status: 5.4.4
    Diagnostic-Code: DNS; Host not found

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

  2. #2
    Join Date
    Apr 2003

    If you look there you have a normal A record setup but nothing else. Many mail services will deliver but to be fully RFC compliant you need to add an MX record for then make an A record for and it should start working.
    John W, CISSP, C|EH
    MS Information Security and Assurance - Server Administration and Security - Managed VPS and Dedicated Servers with VIP Service

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