PhpMailer is use to send email. Some of the web hosting block mail function due to spam the below url show how to download and send email using phpmailer.

http://www.askapache.com/php/phpfreaks-eric-rosebrocks-phpmailer-tutorial.html

http://phpcode.mypapit.net/sending-mail-using-smtp-with-phpmailer/26/

All you have to do is. Just config you smtp, email username and password in phpmailer it will work fine.

If you have any doubt let me know.