postfix NOQUEUE reject

Discussion in 'ISPConfig 3 Priority Support' started by medo, Sep 28, 2017.

  1. medo

    medo Member HowtoForge Supporter

    Hi all,

    I have a problem with whitelisting, whenever I add a domain in the global postfix whitelist in my multiserver setup, it does not seem to be applied as the same server keeps being rejected for a domain that I have whitelisted as "sender_txt".

    Sep 28 07:54:17 pro4fun postfix/smtpd[11311]: NOQUEUE: reject: RCPT from remote.toffs.com[88.96.177.118]: 450 4.7.1 <remote.toffs.com>: Helo command rejected: Host not found; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<remote.toffs.com>

    What am i getting wrong ?

    the server on the over side is clearly misconfigured as remote.toffs.com is not resolving but I have to accept the email.

    Thank you!
     
  2. HSorgYves

    HSorgYves Active Member

    Whitelisting applies to SPAM control, the mail is rejected beforehand.
     
    medo likes this.
  3. medo

    medo Member HowtoForge Supporter

    I got it, it has been rejected by postfix due to this line in main.cf : reject_unknown_helo_hostname. I commented it out. But is there another ways that does not imply manually modifying main.cf ?
     
  4. HSorgYves

    HSorgYves Active Member

    No, not that I know of, they have a severe misconfiguration of their mailserver, because it is using a wrong fqdn. They should fix it...
     

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