Sending email with CodeIgniter using 'mail' or 'sendmail'
===

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?