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  1. #1

    Sendmail saying "user unknown" after setting up MX

    Hi Friends,

    I set up the sendmail in my perosnal home lab. I am using mutt to send the email in between the machines. Everything is working fine if i send email like <username><hostname>. Now i set up the MX record for my domain "" and then i was trying to send the email to like root<at t<>, but in this case as soon as i press "Y" to send the email in mutt; i get this error
    Error sending message, child exited 67 (User unknown.)
    Even in the sendmail logs it shows user known. I know that my sendmail was not configured to accept message from the domain, so i added the to /etc/mail/local-host-names file but still this error remains. It is weird and i assume i should get a delivery failure with something saying like "relaying rejected"

    So can anyone please help me figuring out what is going on here ?>

  2. #2

    Can somebody answer ???

    Can somebody answer to my post above

  3. #3
    Linux Newbie
    Join Date
    Jan 2012
    This may be something you have done already, but do you have a virtual user table set up? Check out this Wiki for more detail
    6 Ways to Configure Sendmail - wikiHow

  4. $spacer_open

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