What does this mail error mean

Discussion in 'General' started by tristanlee85, Apr 15, 2007.

  1. tristanlee85

    tristanlee85 New Member

    Code:
    The original message was received at Thu, 12 Apr 2007 13:43:57 -0400 (EDT)
    from cpe-24-95-42-77.columbus.res.rr.com [24.95.42.77]
    
       ----- The following addresses had permanent fatal errors -----
    <[email protected]>
        (reason: 450 4.1.8 invalid/host-not-in-DNS return address not allowed)
    
       ----- Transcript of session follows -----
    ... while talking to mx2.optonline.net.:
    >>> >>> MAIL From:<[email protected]> SIZE=1559 BODY=8BITMIME
    <<< 450 4.1.8 invalid/host-not-in-DNS return address not allowed
    ... while talking to mx1.optonline.net.:
    >>> >>> MAIL From:<[email protected]> SIZE=1559 BODY=8BITMIME
    <<< 450 4.1.8 invalid/host-not-in-DNS return address not allowed
    <[email protected]>... Deferred: 450 4.1.8 invalid/host-not-in-DNS return address not allowed
    Message could not be delivered for 2 days
    Message will be deleted from queue
    
    I read that it might be because mail is coming from an IP address, not a DNS, but it looks like the DNS is shown so I doubt that's the issue.
     
  2. tristanlee85

    tristanlee85 New Member

    Also, in /etc/postfix/main.cf, I saw this:

    Code:
    # INTERNET OR INTRANET
    
    # The relayhost parameter specifies the default host to send mail to
    # when no entry is matched in the optional transport(5) table. When
    # no relayhost is given, mail is routed directly to the destination.
    #
    # On an intranet, specify the organizational domain name. If your
    # internal DNS uses no MX records, specify the name of the intranet
    # gateway host instead.
    #
    # In the case of SMTP, specify a domain, host, host:port, [host]:port,
    # [address] or [address]:port; the form [host] turns off MX lookups.
    #
    # If you're connected via UUCP, see also the default_transport parameter.
    #
    #relayhost = $mydomain
    #relayhost = [gateway.my.domain]
    #relayhost = [mailserver.isp.tld]
    #relayhost = uucphost
    relayhost = smtp-server.columbus.rr.com
    
    I don't remember entering that host as my relayhost (though it is correct).
     
  3. falko

    falko Super Moderator ISPConfig Developer

    From what domain are you sending?
     
  4. tristanlee85

    tristanlee85 New Member

  5. edge

    edge Active Member Moderator

    I think that it's a "message" from vasceria.com, saying that it can not find your MX.

    Have a look at your MX record and see if you can fix it.
     
    Last edited: Apr 15, 2007
  6. tristanlee85

    tristanlee85 New Member

    Mail sends to other users though, just not that address. I was thinking it was return from his ISP.

    Also, I followed that link and yes, both of my name servers are from the same location. That's not something I'm too worried about. I don't know how I would be able to use a name server at a different location because I only have 1 IP address.

    In the DNS Manager, I select plastikracing.net as the domain and this is what shows for the MX records:

    Code:
      Mailserver  	          Hostname 
      server.vasceria.com  	  www 
      server.vasceria.com  	  tristan 
      server.vasceria.com  	  forums
     
  7. edge

    edge Active Member Moderator

    My error.. That is what I meant to say.. it's a "message" from the ISP who you are send that mail message to.

    I think that the reasoin is because of the MX reccord error.
     
  8. falko

    falko Super Moderator ISPConfig Developer

    And is the sender address of the form [email protected] or [email protected]?
     

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