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Editorial Team
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Asked: 2026-06-08T14:29:21+00:00

I built an intranet app that needs to send email (low volume). I will

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I built an intranet app that needs to send email (low volume). I will not be able to use the SMTP server of my organization, so I need to send these emails via sendmail or mail.

However, when I config my email as:

$config['protocol'] = 'sendmail';

I get:

Exit status code: 127
Unable to open a socket to Sendmail. Please check settings.
Unable to send email using PHP Sendmail. Your server might not be configured to send mail using this method.

and when I use:

$config['protocol'] = 'mail';

I get:

Unable to send email using PHP mail(). Your server might not be configured to send mail using this method.

Is there anything I should setup in PHP or check in phpinfo() to figure out how to get this to work?

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1 Answer

  1. Editorial Team

    OK – this was simple.

    For anyone who faces this issue:

    1. First check if sendmail (actually Postfix) is installed. I am using Ubuntu 11.x.

    cd usr/sbin/

    1. If you can’t find sendmail, then it needs to be installed
    sudo apt-get install postfix
    1. I accepted the default options on the dialogs and once install was complete, emails sent without a problem.
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