Emails not being received from external sources

Discussion in 'Installation/Configuration' started by Trevor Mills, Mar 22, 2017.

  1. Trevor Mills

    Trevor Mills New Member

    Hi there,

    I'm struggling with email.

    I'm trying to setup ISPConfig 3.1.2 on CentOS 7.3. I'm hosting three domains on the installation. I'll list the real domains here for anyone trying to help - trevormills.com, topquark.com, theyroar.com.

    When I try to send emails from any of those domains to any of those domains ( so all on the same server ), the emails get delivered. When I try and send an email from my gmail account to any of these emails, it fails silently - no bounce message in gmail, nothing in /var/log/maillog and no email delivered.

    I'm trying to use the servers mail.trevormills.com, mail.topquark.com and mail.theyroar.com respectively. Digging them shows the correct IP address ( 162.216.19.49 ).

    Please help.
    Thanks,
    Trevor
     
    Last edited: Mar 22, 2017
  2. Trevor Mills

    Trevor Mills New Member

    I think I've figured it out. Problem was in /etc/postfix/master.cf

    I had disabled listening on port 25 like this:
    Code:
    #smtp      inet  n       -       n       -       -       smtpd
    587      inet  n       -       n       -       -       smtpd
    
    I re-enabled it like this, and restarted postfix service:
    Code:
    smtp      inet  n       -       n       -       -       smtpd
    587      inet  n       -       n       -       -       smtpd
    
    And now external emails are being delivered.

    Yeah.
     
    Last edited: Mar 22, 2017

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