Perfect server ubuntu 14.04 - ispconfig3 - postfix error

Discussion in 'Installation/Configuration' started by Angel245, Nov 2, 2014.

  1. Angel245

    Angel245 New Member


    I hope you are well. I have a Ubuntu server – installed utilized the PERFECT SERVER GUIDE guide -

    There is an obvious flaw with the setup of POSTFIX and ISPCONFIG3. I have set up the server utilizing the EXACT instructions and settings as prescribed in the guide. The server will not accept external emails; from YAHOO, GMAIL, etc. 550 5.1.1 RECIPIENT NOT FOUND error is given when attempting to send external mail to the server. I have created email domains and mailboxes, via the ISPCONFIG3 control panel, and set all the DNS Records via the panel also. Everything is correct. I can send emails to external email sources (via SQUIRRELMAIL, ROUNDCUBE & SHELL), and local hosted sites but cannot receive return mail. My POSTFIX main and master file configurations are EXACTLY as in the guide so no need to post the contents of both here in the forum. My server is

    I believe it may have to do with the virtual domains created with ISPCONFIG3 not being recognized by the external mail programs (GMAIL, YAHOO, etc.). I have scoured the internet and it appears this problem of not receiving mail is a common one, however, none of the solutions have worked for me.

    How do I fix please? I have websites that I am hosting that cannot receive external mail. I need to fix this as soon as possible please. Thank you kindly.
  2. srijan

    srijan New Member HowtoForge Supporter

  3. Angel245

    Angel245 New Member

    SERVER is not blacklisted.
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    Any delivery attempts from external servers in the mail.log file?
    is the server in a datacenter or hosted at home or in office?

    Please post the output of:

    netstat -ntap | grep 25
  5. Angel245

    Angel245 New Member

    No delivery attempts in mail log file from external servers.

    Server is in a datacenter.

    netstat -ntap | grep 25

    tcp 0 0* LISTEN 3794/smtpd
    tcp 0 0* LISTEN 9526/master
    tcp 62 0 CLOSE_WAIT 16867/amavisd-new (
    tcp6 0 0 :::25 :::* LISTEN 3794/smtpd

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