ISPConfig 3 - Roundcube send email got 250 Authentication failed

Discussion in 'General' started by JULINT, Jan 23, 2021.


    JULINT Member

    Please help me.. I have followed tutorial install ispconfig 3 on ubuntu 20.04 .
    Ispconfig has been completed..
    when i am logged in to roundcube and send email got smtp error 250 authentication failed.

    Please help me
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    Please post the content of the file /etc/postfix/

    JULINT Member

    Here is the attached

    Attached Files:

  4. Taleman

    Taleman Well-Known Member HowtoForge Supporter

    Postfix conf looks ok. I trust you have yourself also compared it character by character to the Perfect Server Guide? And make sure on the server the filename does not end with .txt.
    Try Internet Search Engines with
    smtp error 250 authentication failed
    Maybe add roundcube if none of those help.

    JULINT Member

    Now it is working... thanks for your help..

    I have changed /etc/roundcube/ smtp_port to 25 , and it works.

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