Mail Server: Host or domain name not found.

Discussion in 'Installation/Configuration' started by shoutkeeper, Nov 25, 2008.

  1. shoutkeeper

    shoutkeeper New Member

    Hello PEOPLE,

    I am setting up a mail server at our school using postfix, dovecot, with MailScanner and Spamassassin. The only problem is I CANNOT SEND outbound mail but I can receive INBOUND mails from other web based mail such as yahoo. Please Help me with this problem... the text that follows are the response of the Mailer-Daemon everytime I send oubound mail.

    Any Help would be appreciated. Thanks...

    ---#####*****#####---

    This is the mail system at host ns1.domain.edu.ph.

    I'm sorry to have to inform you that your message could not
    be delivered to one or more recipients. It's attached below.

    For further assistance, please send mail to <postmaster>

    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.

    The mail system

    <user@yahoo.com>: Host or domain name not found. Name service error for
    name=yahoo.com type=A: Host not found
     
  2. falko

    falko Super Moderator ISPConfig Developer

    What's in your /etc/resolv.conf?
     
  3. shoutkeeper

    shoutkeeper New Member

    Mail Server: Host or Domain Name Not Found

    /etc/resolv.conf file contains:

    search domain.edu.ph
    nameserver 10.0.0.2
    nameserver 10.0.0.2
    nameserver 127.0.0.1

    10.0.0.2 is the IP of my router
     
  4. falko

    falko Super Moderator ISPConfig Developer

    Please try this:
    Code:
    search domain.edu.ph
    nameserver 145.253.2.75
    nameserver 213.191.92.86
    nameserver 10.0.0.2
    nameserver 10.0.0.2
    nameserver 127.0.0.1
    Does it work then?
     
  5. shoutkeeper

    shoutkeeper New Member

    what is

    nameserver 145.253.2.75
    nameserver 213.191.92.86

    ?
     
  6. zcworld

    zcworld New Member

    its tell the system what DNS server to look at
    nameserver : than the DNS server IP
     
  7. falko

    falko Super Moderator ISPConfig Developer

    These are (known to work) nameservers of two German ISPs.
     
  8. shoutkeeper

    shoutkeeper New Member

    cannot send outgoing emails

    Still I cannot send outgoing emails... my email software is AtMail
     
  9. falko

    falko Super Moderator ISPConfig Developer

    What's in the mail log?
     

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