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Thread: Courier IMAP and Postfix SMTP denying connections

  1. #1
    Join Date
    Dec 2009
    Beans
    5

    Courier IMAP and Postfix SMTP denying connections

    Hi there,

    Been trying to set up a mail server for my site, been following the tutorial at http://flurdy.com/docs/postfix/, but now I'm trying to set up an account inside MS Outlook 2010 and it'll fail connecting via IMAP. It says it has also sent it's test message but it looks as if it's getting denied from tailing logs.

    When connecting via IMAP, here's the output:
    Code:
    Dec 31 14:12:24 pandorica imapd-ssl: Connection, ip=[::ffff:81.156.224.250]
    Dec 31 14:12:25 pandorica imapd-ssl: LOGIN FAILED, user=ciaran@nitranetworks.co.uk, ip=[::ffff:81.156.224.250]
    Test message sending outputs this:
    Code:
    Dec 31 14:14:10 pandorica postfix/smtpd[30376]: connect from host81-156-224-250.range81-156.btcentralplus.com[81.156.224.250]
    Dec 31 14:14:10 pandorica postfix/smtpd[30376]: NOQUEUE: reject_warning: RCPT from host81-156-224-250.range81-156.btcentralplus.com[81.156.224.250]: 504 5.5.2 <CiaranPC>: Helo command rejected: need fully-qualified hostname; from=<ciaran@nitranetworks.co.uk> to=<ciaran@nitranetworks.co.uk> proto=ESMTP helo=<CiaranPC>
    Dec 31 14:14:10 pandorica postfix/smtpd[30376]: E757927386A1: client=host81-156-224-250.range81-156.btcentralplus.com[81.156.224.250]
    Dec 31 14:14:11 pandorica postfix/cleanup[30379]: E757927386A1: message-id=<>
    Dec 31 14:14:11 pandorica postfix/qmgr[28576]: E757927386A1: from=<ciaran@nitranetworks.co.uk>, size=630, nrcpt=1 (queue active)
    Dec 31 14:14:11 pandorica postfix/virtual[30380]: E757927386A1: to=<ciaran@nitranetworks.co.uk>, relay=virtual, delay=0.88, delays=0.87/0/0/0, dsn=2.0.0, status=sent (delivered to maildir)
    Dec 31 14:14:11 pandorica postfix/qmgr[28576]: E757927386A1: removed
    Dec 31 14:14:11 pandorica postfix/smtpd[30376]: disconnect from host81-156-224-250.range81-156.btcentralplus.com[81.156.224.250]
    Is there anything I'm doing wrong? Could someone please help me out?

    Regards,

    ~C

  2. #2
    Join Date
    Jul 2011
    Beans
    3,037
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Courier IMAP and Postfix SMTP denying connections

    Maybe different password encryption settings (assuming that the password you configured is the same for client and server)?

  3. #3
    Join Date
    Dec 2009
    Beans
    5

    Re: Courier IMAP and Postfix SMTP denying connections

    It's been configured the same as per the tutorial, it's just encrypt()ed via MySQL, i.e. adding a new user means doing this query:

    Code:
    INSERT INTO users ('id','name','maildir','crypt') VALUES ('user@host','user-host','user-host/',encrypt('password'))

  4. #4
    Join Date
    Nov 2008
    Location
    Metro Boston
    Beans
    8,839
    Distro
    Kubuntu 14.04 Trusty Tahr

    Re: Courier IMAP and Postfix SMTP denying connections

    Code:
    Dec 31 14:14:10 pandorica postfix/smtpd[30376]: NOQUEUE: reject_warning: RCPT from host81-156-224-250.range81-156.btcentralplus.com[81.156.224.250]: 504 5.5.2 <CiaranPC>: Helo command rejected: need fully-qualified hostname; from=<ciaran@nitranetworks.co.uk> to=<ciaran@nitranetworks.co.uk> proto=ESMTP helo=<CiaranPC>
    This might not be the only problem, but the client computer sending the message needs a "fully-qualified" hostname. That's a name of the form host.domain.ext, like ciaranpc.example.com. I don't use Postfix so I don't know whether you can relax this requirement. The alternative is to name the client computer something like ciaranpc.nitranetworks.co.uk.

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