fuel/fuel/packages/email/classes/email/driver/mail.php
protected function _send()
	{
		$message = $this->build_message();
		$return_path = ($this->config['return_path'] !== false) ? $this->config['return_path'] : $this->config['from']['email'];
		if ( ! @mail(static::format_addresses($this->to), $this->subject, $message['body'], $message['header'], '-oi -f '.$return_path))
		{
			throw new \EmailSendingFailedException('Failed sending email');
		}
		return true;
	}
protected function _send()
	{
		$message = $this->build_message();
		$return_path = ($this->config['return_path'] !== false) ? $this->config['return_path'] : $this->config['from']['email'];
		if ( ! @mail(static::format_addresses($this->to), $this->subject, $message['body'], $message['header'], '-oi -f '.$return_path))
		{
			throw new \EmailSendingFailedException('Failed sending email');
		}
		return true;
	}
protected function _send ( ) { $ message = $ this -> build_message ( ) ; $ return_path = ( $ this -> config [ 'return_path' ] !== false ) ? $ this -> config [ 'return_path' ] : $ this -> config [ 'from' ] [ 'email' ] ; if ( ! @ mail ( static :: format_addresses ( $ this -> to ) , $ this -> subject , $ message [ 'body' ] , $ message [ 'header' ] , '-oi -f ' . $ return_path ) ) { throw new \ EmailSendingFailedException ( 'Failed sending email' ) ; } return true ; }
Send the email using php's mail function.

@throws \EmailSendingFailedException Failed sending email

@return  bool    success boolean.
Send the email using php s mail function .