Email in Ubuntu Mediawiki

I had to spend sometime today configuring email in an Ubuntu Mediawiki installation. Below are the commands and configurations that made this task a success:

#sudo pear upgrade --force http://pear.php.net/get/PEAR
#sudo pear install mail
#sudo pear install mail_mime
#sudo pear install Net_Socket
#sudo pear install Auth_SASL
#sudo pear install Net_SMTP
#sudo vi  /var/www/wiki/LocalSettings.php
...
#to be sure we can debug
error_reporting(E_ALL);
...
#point to the location of Mail.php which in this case was /usr/share/php/
ini_set( "include_path", ".:$IP:$IP/includes:$IP/languages:/usr/share/php/" );
..
#some mandatory settings
$wgEnableEmail      = true;
$wgEnableUserEmail  = true;
...
#SMTP settings. Your's might be different of course
$wgSMTP = array(
'host'     => "smtp.sample.com",
'IDHost'   => "sample.com",
'port'     => 25,
'auth'     => false
);
...
$wgEmergencyContact = "support@sample.com";
$wgNoReplyAddress = "no-reply@sample.com";
$wgPasswordSender = $wgNoReplyAddress;
...
$wgEnotifUserTalk      = true; # UPO
$wgEnotifWatchlist     = true; # UPO
$wgEmailAuthentication = true;
$wgEnotifMinorEdits = true;

Note that in order to get email notifications for pages you watch you must authorize your email and check the box "E-mail me when a page on my watchlist is changed". Just look for "E-mail confirmation" in your Preferences page.