Certificate verification failed for ar.vmx.terra.com - untrusted issuer

Discussion in 'ISPConfig 3 Priority Support' started by nmazza, Feb 3, 2017.

  1. nmazza

    nmazza Member HowtoForge Supporter

    Hello, again
    Untrusted user
    Feb 2 18:03:21 mail postfix/smtp[19647]: certificate verification failed for ar.vmx.terra.com[]:25: untrusted issuer /C=US/O=Sample, Inc./OU=IT Team 20160319112329 /CN=CA
    How to avoid untrusted user and connections, when using Certificate ?
    Nestor Mazza

    Attached Files:

  2. till

    till Super Moderator Staff Member ISPConfig Developer

    You seem to use a self-signed SSL certificate. To get rid of the error, you need a officially signed ssl cert. You can get ne from Let's encrypt for free like this:


    Then configure Postfix to use it:

    cd /etc/postfix
    mv smtpd.cert smtpd.cert_bak
    mv smtpd.key smtpd.key_bak
    ln -s /usr/local/ispconfig/interface/ssl/ispserver.crt smtpd.cert
    ln -s /usr/local/ispconfig/interface/ssl/ispserver.key smtpd.key

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