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Plesk 9.3 - can't send email to one domain

Discussion in 'Plesk 9.x for Linux Issues, Fixes, How-To' started by MintC, Jan 17, 2011.

  1. MintC

    MintC Guest

    Hi here's the details to my 'pull my hair out' problem:

    We're a design agency with our own VPS that is running Plesk 9.3 for Linux/Unix.

    Our email (qmail) is able to send and receive all mail APART from being able to send to our mail client at a single domain. None of the emails are getting through to them and they are a multinational company.

    Emails to them simply end up in our mail queue. We have no issues receiving from them or sending out to anyone else.

    Bounced error message reads:
    CNAME lookup failed temporarily. (#4.4.3)
    I'm not going to try again; this message has been in the queue too long.

    but I've raised a support ticket with their tech guys and there's no blacklist on our IP address. So I'm at a lost as to what the issue could be. This only started happening about a week ago, and we've no issues for the last 3 years.

    Also, our qmail service in plesk seems to stop itself every so often and I have to restart it through plesk or no emails will come in. Our settings are as seen in the screenshot. Is this normal?

    Attached Files:

  2. MintC

    MintC Guest


    updated /etc/resolv.conf
    so it reads:

    nameserver <your ip address e.g. 999.>
    nameserver <your ip address e.g. 999.>