====== Sendmail ======
  - If sendmail isn't installed, install it:<code>sudo apt-get install sendmail</code>
  - Configure /etc/hosts file, make sure the line looks like this:<code>127.0.0.1    localhost    yourhostname</code>
  - Run Sendmail's config and answer ''Y'' to everything:<code>sudo sendmailconfig</code>
  - Restart apache:<code>sudo service apache2 restart</code>
  * [[https://gist.github.com/adamstac/7462202|Install and configure Sendmail]]